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Teri Radichel #cybersecurity #pentesting Profile
Teri Radichel #cybersecurity #pentesting

@TeriRadichel

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CEO @2ndSightLab | Cybersecurity Pentester Researcher | AWS Security Hero l GSE | IANS Faculty | Contact: LinkedIn | Author

Savannah, GA
Joined March 2009
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
1 year
Free content on jobs and careers in cybersecurity and tech. Also salary negotiations for women. Sign up for my email list to learn something new in cybersecurity almost every day. #cybersecurity #jobs #career #salary
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Behold...Rules for pentesting on AWS just changed...
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
Twitter accounts sharing video from Ukraine being suspended. Researchers concerned that suspensions could be part of mass reporting campaign to disable OSINT accounts during Russian invasion. [Literally JUST tweeted thread about Twitter manipulation.]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Google Chrome DNS Security Bypass: Google Chrome overrides system DNS settings in some cases, bypassing third-party security services and tools | by Teri Radichel | #cybersecurity | April 19, 2021
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Every possible Windows command you ever wanted ~ doc published by Microsoft
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Teri Radichel #cybersecurity #pentesting
3 years
Please when reviewing news on Ukraine, double check every report with multiple, credible sources. Russia is the master of fake news.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
The SANS GSE What’s it like to take one of the hardest cybersecurity certifications in the industry — and pass!
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Why one of your favorite pen testing techniques doesn’t work on AWS ~ I’m going to mention this in my talk at AWS #reinforce
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
AWS: Literally. There is no room with monitors and people sitting in it, etc. I have exactly one on-call security engineer. Exactly one.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
2 years
Microsoft is going to enforce number matching for MFA notifications starting February 27, 2023. Related to the Oktapus blog I just published and issues with MFA notifications.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
What nerds do on Friday night: The paperback version of my book will be online in 72 hours. Some corrections pushed out for ebook. I can’t look at it anymore. If you find errors please DM. Thanks ❤️
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
7 years
Passed. GPEN. SEC560: Network Penetration Testing and Ethical Hacking
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
I’m GSE #240 About the GSE:
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
My book is now for sale on Amazon. 350 pages and a year’s worth of effort. I sincerely hope it helps. Additional chapters, more content than my blog, and lots of edits. Printed book to follow. Please DM any issues or questions. Or come to my #RSAC talk tomorrow. Thank you!
@2ndSightLab
2nd Sight Lab
5 years
Cybersecurity for Executives in the Age of Cloud ~ by Teri Radichel ~ available now on Amazon #cybersecurity #cloudsecurity ~
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
8 months
@samuel_colvin Rust was essentially created by one guy at Mozilla also who now works on Swift at Apple.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Azure won’t let me create a resource group name with the word Windows in it - because it’s trademarked.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
If you use Confluence, exposed to the Internet, read this: How I hacked 50+ Companies in 6 hrs.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 months
@ThisIsNoahEvans @rodtrent I think some people are confused because Azure was down for a large portion of the day yesterday as well.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Still seeking a lady that wants to take my cloud security class in Melbourne, Australia for FREE Nov 11-15 at the Sheraton Four Points. It’s a 5 day class $2500 US. Please contact me on LinkedIn for more information.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
2 years
A friend posted this about airport security but it applies to some #cybersecurity architectures as well. 😆 Think holistically about cybersecurity architecture and design.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
1 year
@thehill Bogus. I get way more exercise at home. I take my dog on walks for one thing. Have more time for such things since no commute.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Just found that periodic screen shots of my Windows desktop on an Azure VM showing what I have open and am working on is going into some folder called FeedbackHubLog on Azure. What.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
7 years
There is NO excuse for not encrypting anymore. In transit, at rest, everywhere. Werner Vogels #reInvent
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
WebSocket Support for API Gateway #reInvent
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
GitHub is about to release a security scanner for your code to find SQL Injection, etc.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 months
Azure has been down over 5 hours. Apparently storage in the central US affects Entra ID (Azure AD) and MFA. GitHub Actions is also affected.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 months
Oops.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Microsoft says they seized this domain. Security Trails reports it's been hosted on Microsoft IP addresses for a while. Some of the subdomains were running on AWS infrastructure according to this site.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Microsoft and industry partners seize key domain used in SolarWinds hack
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
Russia is jamming GPS satellite signals in Ukraine, US Space Force says | Space
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
9 months
@Brett_Shavers Get a PO Box for forwarded mail when you move.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
A post I should have written a long time ago. Written quickly as I’m busy. How to Inspect Network Traffic. A few tips on finding what matters on your home network | by Teri Radichel | August 26, 2021 | #cybersecurity #networksecurity #networkmonitoring
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
What's in your cloud? Thoughts on the Capital One breach by a former Capital One software engineer, team lead, cloud engineer, and security employee #capitalone #databreach #cloudsecurity
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
1 year
Vulnerabilities as art. A picture is worth 1000 words.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Designing a modern serverless application with AWS Lambda and AWS Fargate [TR: On top of being cool from a serverless perspective, watching for changes in source code used by your company is cool from a security perspective]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Stuck at home? Why not learn something. Cybersecurity fundamentals and risk management to reduce the chance of an attack in your organization. A new way of looking at old problems. 2019 was the worst year on record for data breaches. Let’s change that.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
2 years
DKIM for Email Security Another DNS record you can add to improve email security ~~ by Teri Radichel | Apr 2, 2023 #cloud #cybersecurity #email #security #dkim #dns
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
7 years
Can't blame any w/o facts. I worked @ Capital One. Sys admins can't just run in prod. Sec people not always heeded. Execs set priorities.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
You can now create, manage, and deploy AWS CloudTrail trails across an organization from a single account.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Traffic mirroring. Send copies of VPC traffic to tools of your choice.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Proof...super exciting.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
@vaidehijoshi @thedavedev I consistently upped my salary over my career by being strategic. Research the going rate. Read books on negotiation. Obtain hard to find skills. Specialize in something. Be the best. Change companies if you feel undervalued. Don’t be afraid to walk. But money isn’t everything.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
I’m about to tell you how I’m going to break into your AWS account and steal all your data! Mwahaha. Then @kolbyallen is going to tell you how to stop me. DVC304 Venetian 1 pm. #reInvent
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Prolonged AWS outage takes down a big chunk of the internet [TR: If your website is that important, consider multi-region failover, as I discuss in class. First thing we built out when I moved a security vehicle for to cloud.]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
AWS Security Tools
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
I’m writing a modern book ~ one blog post at a time ~ #cybersecurity for executives. It will cover cloud security too. If you’d like to read it follow me here and please clap if you like it!
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Real code for kids. I like it.
@troyhunt
Troy Hunt
6 years
Been teaching my 8-year old son to code with @CodeCombat . This is *highly* recommended folks! I did this with him, went and did an hour of work and he was still loving it when I came back.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
My tweet about the AWS pentesting change made the news – Check out the article in GeekWire
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Easy DNS Change To Prevent Attacks: 1.1.1.2 and 1.1.1.3 for safer home and small business networks | by Teri Radichel | October 28, 2020 | #cybersecurity #cloudsecurity #homenetwork #smallbusiness
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Logs...AppSec...Log any failures, crashes, strange logins, anything related to security controls... all this @shehackspurple
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Even after breach, Capital One is 'all in' on the cloud | American Banker [Yes! Because it’s not the cloud’s fault. Capital One will be even more secure after this breach due to lessons learned. It’s one of the best places I worked due to smart coworkers.]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
How network traffic got me into cybersecurity. [Also — being paid by a large hosting company to go away after reporting a security incident, and other strange events.]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Add two hardware mfa devices (like yubikey) on an AWS user or root account - one as backup to be stored separately. #awswishlist
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
The Internet is Held Together With Spit & Baling Wire – Krebs on Security
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Google Cloud API bug leaks private project information [From Sept. Not sure I saw this.]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Another database exposed in the cloud ~ this time on Google
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
For anyone in an underrepresented group who wants to learn more about cloud, DevOps, or AWS check out this grant to attend AWS re:Invent 2019. Pretty sweet! I had to take vacation time and pay my own way the first time I went!
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Ubiquiti all the things: how I finally fixed my dodgy wifi [TR: per all the recommendations from my WiFi query reading this post by @troyhunt ]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
This is awesome. I wrote a white paper about automated detection and response on AWS in 2016 when no one I asked was doing it. Love the improvements in this space.
@david_das_neves
David das Neves
3 years
Good article by Netflix - these are things you need to establish when moving with large parts of your env to #Cloud [Article] Snaring the Bad Folks #CyberSecurity #CloudSecurity
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
A number of people asked me how to get started with CloudFormation this week at re:Invent and if they should use the CDK. Here are some tips for getting started. #reinvent #cloudformation #aws
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
I see a lot of AWS pentest blogs relying on very poor credential configurations or making a leap to assume they will have permission to do something they won’t. Come learn about preparing for an AWS pentest at my talk at re:Inforce. Not online yet but hope soon.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Severe ‘Perfect 10.0’ Microsoft Flaw Confirmed: ‘This Is A Cloud Security Nightmare’ [TR: Well, this is big. It is every security person’s worst fear when using cloud. Note speed to fix (talked about that at RSA) and tiers - upcoming blog post on that.]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
As I’m updating my class, the cloud vendors are announcing new features daily. Although I try, it’s impossible to cover every detail in 5 days. That’s why I teach not just technology, but how to think about security - to evaluate new things and design secure cloud architectures.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
When we deliver a pentest report it includes not only the findings but information to replicate and fix them. I’m helping a couple of customers with that right now. Make sure your report doesn’t just tell you what the problems are but also tells you how to fix and validate.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
Really not cool when people steal your book and post it online for free. Took a year to write it and only costs $9.95 for Kindle format. Thanks a lot. Please buy books and support authors. I give a lot of other content out for free on my blog.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
If you were looking for the cost of MFA on Azure it's here. Although support folks just stated I need the P2 license which is $9/month and this page says the P1 license works which is $6/user per month. PS Virtual MFA is free on AWS.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
This is awesome. Can specify only users in an org can access a bucket.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Machine learning-based detection of malicious PDF files used for phishing
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
2 years
Cybersecurity researchers face real-life threats [TR: I know stories about the owners of Blue Frog and ⁦ @briankrebs ⁩ in his book Spam Nation. Any other stories and sources to back them up?]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
AWS VPC Flow Logs do not capture AWS DNS traffic. I was told this is because that traffic never leaves the hypervisor so presumably AWS Flow Logs are generated at Layer 2 and 3 using actual NetFlow protocol
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
Do you watch what your TV does on your network? Ours randomly turns on and tries to connect to things denied by firewall. Inherited it from housemate. Not a fan. Now reading the brand, Hisense, is connected to the CCP. Hmm. Monitor your tv traffic and let me know what you see.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
If you own #Bitcoin pull out. Tank the price for people trying to avoid sanctions.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
GitHub Says Hackers Breached Dozens of Organizations Using Stolen OAuth Access Tokens. An attacker abused stolen OAuth tokens issued to two third-party OAuth integrators, Heroku and Travis-CI, to download data from dozens of organizations, including NPM.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 months
I like the new jacket! Thanks ⁦ @awscloud ⁩ ! ❤️ Been wearing it since Seattle is colder than Savannah and wasn’t really prepared for six extra days. 😆
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
This is definitely closest I have ever been to the stage at #reInvent #replay
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
I just realized, while applying for an Australian visa, that I never received a hard copy of my #GSE and a couple other certs - so I contacted SANS and I just got it - in a frame even. Nice! #cybersecurity GSE # 240
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
1 month
I created a new AWS user in a new AWS account. There are events in CloudTrail showing that user contacted Amazon Q, which I did not do. These events are in us-east-1 which is not the region in which I was working. I just changed to us-east-1 to check the CloudTrail logs from the
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
If you missed my talk about pentesting on AWS at re:Inforce will be giving it at re:Invent.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Got a message from a gentleman who read my book before taking a new C-level job at a startup. Now wants to give it away to customers. He has worked at large tech companies and successful startups ~ now working on a new data security product. Very cool.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Great interview with @hackingdave ~ fellow @IANS_Security faculty member. Aligns with why I say executives need to care more about cybersecurity in the first chapter of my book. Also check your insurance policy for exclusion of “acts of war.”
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
Never allow traffic on port 4444 on your network. This is the default port used by Metasploit. It won’t stop advanced attacks but at least make the attacker go to the trouble of changing the port! If you see an active connection on that port in your network logs now, investigate.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
2 years
Master Sgt. Amanda Draeger completed her GIAC Security Expert (GSE) certification, making the her one of only four women out of approximately 250 people worldwide who are GSE certified. [2018. I wonder what the stats are now.]
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Top Priorities for Cloud Application Security ~ slides from my recent presentation at Countermeasure in Ottawa. I hope to be giving this talk again at future events and will be expanding on the topic. #cloudsecurity
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
At BSides Seattle! Talking about cloud application security this afternoon.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
10 years
In depth analysis of SSH attacks on EC2 instances
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Lessons learned from an actual cloud breach. 1. Security awareness and MFA 2. Alert on new admin accounts 3. Monitor for scans 4. Monitor for data duplication and movement internally 4. Open ports, DLP, and excessive network traffic.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
Especially honored to be presented with this beautiful invitation to speak in India. I will try! #reinvent
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
3 years
Love this thread. Methodical Troubleshooting.
@SwiftOnSecurity
SwiftOnSecurity
3 years
Troubleshooting Windows #100 : "Do I own this?" Across the org, users of a business app are told they can't get a license for their critical tool. Hanging on contacting the license server. A problem call is spun up and application owners engaged. Server is running. Call vendor.🧵
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
1 year
Introducing the first AWS Security Heroes | AWS News Blog ~~~ I was already an AWS Hero as some of my followers know but now I’m an #AWS #Security Hero. Yay! 🩵🩵 Thank you AWS. Still my favorite cloud platform.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
Thanks to everyone who attended my talk at @bsidesseattle ~ saw some great presentations! Thanks so much to the organizers. Here are my slides. #cloudsecurity #bsides #seattle
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
I love #awswishlist !! For those who wonder if it works...
@AWSSupport
AWS Support
6 years
@TeriRadichel This wish has been fulfilled, Teri! 🙌🎉 Our service team has implemented a change based on your input; thanks again for the suggestion! ^RH
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
4 years
I found @TroyHunt years ago watching authentication videos on @pluralsight and started following on Twitter. Love some of his points of view here. Also love @shehackspurple calling out everything Canadian 😆
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
5 years
I guess imitation is supposed to be flattering. I already see people copying what I wrote in my blog post, but I hope you will read it here first.
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
AWS, Azure, and Google Cloud Security ~ 2nd Sight Lab ~ Follow me for updates
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@TeriRadichel
Teri Radichel #cybersecurity #pentesting
6 years
I did it. Fit my SANS books in my carry on. Now the question is: can I lift my carry on to get it into the overhead bin.
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