Christopher | πΊπ¦ ξ¨
@d4rkshell
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Cyber Ops Manager π» | Public Sector | #CISSP | #CCSP | #SecurityX | #CySA+ | #CyberSecurity | #Infosec | #Hacking
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Joined April 2018
Hacker Perspective submissions are open! Write 2500 words on what it means to be a hacker, your hacker philosophy, & how you became a hacker - and get $500 if we print it! articles@2600.com
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The 2025 SANS #HolidayHackChallenge is now LIVE!! π
βοΈ
The 2025 SANS #HolidayHack Challenge is officially open! π Celebrate 10 yrs of festive hacking fun with fast micro-challenges, epic capstone puzzles, a new CTF-only mode, and more! Can you uncover whatβs stirring beneath the 8-bit neighborhood? βοΈ Join free β
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Some fantastic guidance from @NCSC on zero-trust architectural design principles.
Zero Trust is not a product it is an approach - at the @NCSC we have just released demystifying zero trust which addresses common misconceptions, and provides practical advice on when and how it should be adopted. https://t.co/nnyn1iURHw
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The most wonderful time of the year, ho-ho-ho! π
#HolidayHackChallenge
β°π The wait is almost overβ¦ the #HolidayHack Challenge is going to open soon! Donβt get on π
Santaβs Cyber Naughty List by forgetting to subscribe to learn when the game is officially open. Who's ready to get started? https://t.co/sxu3vgWOmi
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RIP Greg Newby π’
We have sad news.
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π We have fined Capita Β£14 million for failing to ensure the security of personal data when a data breach in 2023 saw hackers steal millions of peopleβs information. For some people this included details of pension records, financial data and even special category data.
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I've been researching the Microsoft cloud for almost 7 years now. A few months ago that research resulted in the most impactful vulnerability I will probably ever find: a token validation flaw allowing me to get Global Admin in any Entra ID tenant. Blog:
dirkjanm.io
While preparing for my Black Hat and DEF CON talks in July of this year, I found the most impactful Entra ID vulnerability that I will probably ever find. One that could have allowed me to compromise...
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HackerOne community event in Manchester on Saturday 27 September - RSVPs now open!
https://t.co/vOwqa6oLRz Were coming to Manchester! Come spend the day hacking along with us!
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Phrack turns 40. The digital drop is live. Download it. Archive it. Pass it on. πΎ https://t.co/JbEbf6xoVQ
#phrackat40 #phrack72
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Phrack #72 release reveals TTPs, backdoors and targets of a Chinese/North Korean state actor mimicking Kimsuky A copy of his workstation data was done and is now available for all researchers to analyse! Article: https://t.co/iCI70eUbuQ Data dump:
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Awesome research once again from @albinowax.
The whitepaper is live! Learn how to win the HTTP desync endgame... and why HTTP/1.1 needs to die:
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This looks pretty epic! #Hak5 #WiFiPineapplePager
20 years ago today I started @Hak5. In celebration, I can only say what we're about to release today is the culmination of that work -- 20 years of technolust. Thanks for being here for it -- you've made it possible. Tune in, it's about to drop:
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UK to ban ransomware payments by public sector organisations #CyberSecurity #Ransomware
https://t.co/gpyWerW5NC
theregister.com
: 'We're going to smash the business model' NHS, councils, and schools told
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I can't remember who created this video, but it's absolutely one of my favourites and makes me laugh every time π
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Weak password allowed hackers to sink a 158-year-old company
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Microsoft is aware of active attacks targeting on-premises SharePoint Server customers, exploiting a variant of CVE-2025-49706. This vulnerability has been assigned CVE-2025-53770. We have outlined mitigations and detections in our blog. Our team is working urgently to release
microsoft.com
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Happy 10th Anniversary @Steel_Con and thank you to everyone for another amazing event ππ» This was my 4th in a row and I hope to see you again next year! #Steelcon
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Had a blast hosting the bug bounty gathering at @Steel_Con again this year. We had lots of traffic, a presentation, group hacking and someone found their first bug (which was a critical auth bypass!). Amazing, thanks to everyone who made this happen. #hackerone #steelcon
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