Heike Ritter

1/7 🛡️ April 2026 @msftsecurity monthly update by @HeikeRitter just dropped and there's a LOT to unpack. Security Copilot now has a full chat experience in Defender, identity got its own risk scores, and proactive user containment went GA. 🔗 Link to blog post: msft.it/6011QNWMb Let's get into it 🧵 #MicrosoftSecurity

@yuridiogenes Can't wait to invite you for some more good MDC stuff in its new home 🥳

It was great joining my friend @HeikeRitter Ninja Show to talk about the new home for Defender for Cloud linkedin.com/posts/yuridiog…

I know everyone likes good news - there you go: 🙃 2 new public previews for you and a little guide for everyone traveling to RSAC 2026 youtube.com/shorts/yBmvR-7…

Securing the AI supply chain matters as much as securing prompts - The LangGrinch (CVE‑2025‑68664) incident is a reminder: vulnerabilities in frameworks like LangChain can quietly reshape behavior at runtime. microsoft.com/en-us/security…

We’re all seeing more discussion about ads in AI experiences. But there’s a more concerning security angle. AI Recommendation Poisoning manipulates AI memory and outputs to steer recommendations for profit. Read our full research 👇 microsoft.com/en-us/security…

We’re seeing active exploitation of SolarWinds Web Help Desk in the wild. If Web Help Desk is internet‑facing, assume it’s being actively targeted. Full analysis + mitigation guidance from my team: microsoft.com/en-us/security…

Your quick Weekly Security News are here 🚀 incl. 2 new previews 🤩 youtube.com/shorts/dJrctpL… #cybersecurity #infosec

New research on detecting backdoors in open-weight language models. Our research highlights several key properties of language model backdoors, laying the groundwork for a practical scanner designed to detect backdoored models at scale microsoft.com/en-us/security… #Infosec

A brand-new Power BI template for email security reporting & a major update to the Microsoft Sentinel workbook. Get started in minutes with either option. techcommunity.microsoft.com/blog/microsoft… #emailsecurity #infosec

Uff 😮‍💨 ... January was packed with new releases, videos and blog post! Make sure to check out our Monthly Defender News to not miss anything techcommunity.microsoft.com/blog/microsoft… #DefenderNews #cybersecurity #infosec

@NDeWestelinck This Nicky!! Sometimes there is just not enough hours in a day. Your contribution is sooooooooo important and valued - with or without the title. Please keep rocking 💪🏼

My #MicrosoftMVP application got declined today! These things are just part of the personal journey. Am I disappointed? Of course. Does it demotivate me? Not at all! 💪🏻 #staymotivated Don't let bad moments discourage you, but keep doing what you love. 🫶🏻 #communityluv #NoMVPBuzz

Short video explaining & showing how to enable and configure the Data Security Triage Agent in Microsoft Purview Data Loss Prevention to automatically identify and prioritize high-risk DLP alerts youtube.com/watch?v=yZQKnv… #MicrosoftPurview #DLP #DataSecurity

Stop wasting time hunting for updates. Get the latest on Microsoft Security products in under 60 seconds. Keep your SOC efficient and your posture tight. 🛠️ Watch the weekly recap: youtube.com/shorts/rsAdgEc… #SecOps #MicrosoftSecurity #CyberSecurity

3 new Previews for you to check out! #weeklynews #cybersecurity #infosec youtube.com/shorts/P4Hc7fC…

Check out our Weekly Security News ✨ youtube.com/shorts/dqhH7oR… #Microsoft #infosec #cybersecurity

My last work week before taking some time off for the Holidays ✨ Happy Monday and Happy Holidays everyone 🥰 Be kind and nice to each other 🫶

This episode addresses frequently asked questions about Microsoft Sentinel data lake. Tune in for key concepts, setup considerations, and how this new feature helps you manage and analyze security data at scale. youtu.be/BPafZ8FMrug?si… #infosec #Sentinel #NinjaShow

@ChadWst 😊 will let the team know! I love your hat!!! 🧑‍🎄

@HeikeRitter Loving the MDI enhancements!!

The last one for 2025 and we are closing strong with news and enhancements across our Defender products! techcommunity.microsoft.com/blog/microsoft… #defendernews #microsoft #infosec

New enhancements in attack disruption 💥 attack disruption now proactively contains exposed & high-risk domain accounts 💪🏼 youtu.be/E9bw5I72Rz8?si… #cybersecurity #infosec #Microsoft