ChrisPy (@chrispy_sec) 's Twitter Profile
ChrisPy

@chrispy_sec

Principal Security consultant @WithSecure Love doing some Azure/Entra ID research ☁️

Opinions are my own

ID: 1179495548736421888

calendar_today02-10-2019 20:37:14

222 Tweet

273 Followers

295 Following

ChrisPy (@chrispy_sec) 's Twitter Profile Photo

Massive thanks to Dr. Nestori Syynimaa for being able to get one of these cool badges! Coming in early-ish clearly was the right call 😂 Will be playing around with it alongside my bro to get it working (or break it more)

Alfie Champion (@ajpc500) 's Twitter Profile Photo

With a process that began two and a half years ago, I'm very excited to announce that I've written a book with No Starch Press! 🎉 "Practical Purple Teaming" tells you all you need to know to get started with collaborative offensive testing. nostarch.com/purple-teaming

ChrisPy (@chrispy_sec) 's Twitter Profile Photo

Yo check out my friend James’ talk on protocol confusion attacks Deffo an excellent use of 40 mins if you’re into cool lower-level attacks youtu.be/gcsdrQH0fOQ?si…

ChrisPy (@chrispy_sec) 's Twitter Profile Photo

Obligatory tactical repost of my talk from Disobey this year! Hopefully people use this to get inspired and show us some more cool less explored attack surfaces in Entra and Azure youtu.be/iwLaWPisu64?si…

James Surowiecki (@jamessurowiecki) 's Twitter Profile Photo

This is truly amazing. The Deputy White House Press Secretary is claiming that I'm wrong, and that the "tariff rates" on Trump's chart were calculated by "literally" measuring every country's tariffs and non-tariff trade barriers. To prove it, he screenshots the formula the USTR

This is truly amazing. The Deputy White House Press Secretary is claiming that I'm wrong, and that the "tariff rates" on Trump's chart were calculated by "literally" measuring every country's tariffs and non-tariff trade barriers.

To prove it, he screenshots the formula the USTR
ChrisPy (@chrispy_sec) 's Twitter Profile Photo

I love how when I'm testing CA policies I can just google around a bit and find Nathan McNulty 's detailed guides around some of the issues😂 P.S Also pro-tip for people playing with attributes remember that there is an Attribute assignment AND definition adm role

Donato Capitella (@dcapitella) 's Twitter Profile Photo

An in-depth look at the recently published EchoLeak vulnerability on M365 Copilot by Aim Security that could lead to data exfiltration just by sending an email to a user who uses Microsoft Office365 Copilot. youtu.be/Myf1cLsUxsk

An in-depth look at the recently published EchoLeak vulnerability on M365 Copilot by <a href="/Aim_Security_/">Aim Security</a> that could lead to data exfiltration just by sending an email to a user who uses Microsoft Office365 Copilot.

youtu.be/Myf1cLsUxsk
ChrisPy (@chrispy_sec) 's Twitter Profile Photo

Hey Nathan McNulty gathering some data and wanted to get your thoughts. On the topic of exclusions, what are the best approaches for Conditional Access in Entra and exclusions for endpoints in MDE in the context of a large enterprise? CA policies I'm a fan of Restricted AU sec

Offensive X (@theoffensivex) 's Twitter Profile Photo

This incredible duo of Leonidas Tsaousis (@laripping) & James Henderson are taking the stage at Offensive X to talk about ‘’ There and Back Again: An Attacker's Tale of DCs in AWS’’ #OffensiveX2025 #CyberSecurity #AWS #RedTeam #CloudSecurity #InfoSec #Hacking

This incredible duo of Leonidas Tsaousis (@laripping) &amp; James Henderson are taking the stage at Offensive X to talk about ‘’ There and Back Again: An Attacker's Tale of DCs in AWS’’

#OffensiveX2025 #CyberSecurity #AWS #RedTeam #CloudSecurity #InfoSec #Hacking
ChrisPy (@chrispy_sec) 's Twitter Profile Photo

Heya got a talk happening later today pretalx.com/fwd-cloudsec-2… where I’m gonna talk about some interesting SharePoint findings! Last one will be particularly interesting to folk 👀 Should be at this live stream youtube.com/live/Vb_MyY3RQ…

ChrisPy (@chrispy_sec) 's Twitter Profile Photo

Check out Katie Knowles 's talk on Entra 1st-party service principal abuse currently airing at fwd:cloudsec youtube.com/watch?v=0BTBK3… Deffo a good watch in the current livestream or when the individual talk video drops later on in the channel

ChrisPy (@chrispy_sec) 's Twitter Profile Photo

My talk was published mega quickly as its own video by fwd:cloudsec (thanks btw!) So feel free to check it out if you wanna learn some fun SharePoint research outcomes and learn about a “pre-signed url” equivalent method of accessing SharePoint files! youtu.be/l5lpIF_QZCE

ChrisPy (@chrispy_sec) 's Twitter Profile Photo

Last talk shout out for Nick Jones and Mohit Gupta who talked about how to build a new AWS environment. By consultants for consultants and without any extra external consultants! Worth a check out if you’re interested in some of the challenges we faced youtu.be/rai0bTOamG0

ChrisPy (@chrispy_sec) 's Twitter Profile Photo

If anybody is interested in Azure DevOps and how attackers might go about abusing OIDC connections used in pipelines then check out my colleague’s latest blog! labs.reversec.com/posts/2025/07/…