Pascal Gujer 

🔐 Want to break BitLocker with real tools, not just slides? This is your last chance to grab a spot at early bird pricing for our Breaking BitLocker training at Black Hat USA 2025. Over two intense, hands-on days you’ll: 🧠 Learn how TPM internals work 🪛 Solder onto a real…

🔑 Announcing: International BitLocker Recovery Key Day – July 19th! One year ago, many learned the hard way: If your system fails or TPM states change, you could lose access without your BitLocker recovery key saved offline! Storing keys in Active Directory (AD) is common, but…

After one day #handsOnSecurity

Guess what we‘re up to!? 😇 Yes - right - #bitpixie 😎 As part of our #BreakingBitLocker Training in Zurich we train three different attacks against BitLocker TPM-only setups… Next training is @BlackHatEvents in Las Vegas, NV: hos.direct/bhusa25-23aug 🚨only 1 seat left! 🚨…

Got asked for tweezers last weekend—tick emergency while we were out fishing. ✅ Luckily, my first aid kit had everything. Removed the tick. Then came the talk: ticks, FSME, Lyme, vaccines… 🎯 Reminder: • Use fine tweezers • Pull slow, don’t twist • Disinfect • Monitor for…

Archetyp Market – one of the longest-running darknet drug markets with over 600 000 users – is no more. 💻 Infrastructure dismantled 👤 Admin arrested 💰 EUR 7.8M seized Read more in our press release ⤵️ europol.europa.eu/media-press/ne…

🚨 Breaking: The 2nd run of our Breaking BitLocker training at #BlackHatUSA was cancelled. Disappointed? Sure. Defeated? Never. 🔥 Only 3 seats left for the Aug 2–3 session. 🧰 Hands-on. Gritty. Soldering scars included. 🎟️ hos.direct/bhusa25-23aug 🇨🇭 No Vegas? Hit the Zurich…

Hydroph0bia (CVE-2025-4275) PoC - DXE volume takeover on HUAWEI MateBook 14 2023, flashing a patched BIOS with custom boot logo. No user interaction outside of the OS required, SecureBoot and firmware password remain enabled. coderush.me/hydroph0bia-pa…, coderush.me/hydroph0bia-pa…

Got a flat on our Thule Chariot bike trailer. Realized: not just the tube - the whole tyre was done. Lesson? Don’t wait till you’re stranded with kids onboard. 🚲👶 Swapped the tyre, pumped it back up with my fav tool: ➡️ Xiaomi Portable Electric Air Compressor ✅ Up to 10 bar…

Sorry, no dad hack last week — I was busy biking, fishing, and doing what dads do best: fixing problems with whatever’s lying around. 🛠️ We hit a Swiss Grillplatz with the kids. Fire? One match + 100ml burner alcohol + dry wood = 🔥 But: no grill tongs. So I made some. 2…

Most people wait. They wait until they feel ready. Until the fear is gone. Until they know everything. But here’s the truth: you rarely feel ready when it really matters. Readiness isn’t what brings results—#movement is. I recently heard a powerful line: “The people who…

🔧 Dad Hack: Fixing Broken Plastic Parts! When a toy snaps, unleash the secret combo: super glue + baking soda! 🪄 It hardens in seconds and rebuilds missing bits. 🛠️ Tools: drill, key files 😇, precision drivers, super glue, baking soda, plastic wrap 🔁 Process: glue →…

Woow! 🤯😍 Srsly: Looks like SPA and DPA just became cheaper by a factor of 3 😎👍🏻

Don’t wait for the wind to change – set your sail. 🚩 At 14, I dreamt of attending #BlackHatUSA. Today, I’m not just attending – I’m an invited trainer. Years of passion, perseverance, and hacking led here. Curious about the full story? Check it out on LinkedIn. #CyberSecurity…

“Why do you always carry a knife?” My great-grandfather told my grandfather: “A real man always carries a knife.” My grandfather told my dad. My dad told me. Now that I’m a dad, I get it. Today, I turned an Ovomaltine bottle into a spill-proof, straw-ready hydration device.…

🔓 Breaking BitLocker: Bitpixie is Back! 🚨 Imagine bypassing BitLocker on a fully updated Windows machine—in under 5 minutes, without opening the device. The Bitpixie vulnerability isn’t new (known since 2022), but it’s resurfaced after Thomas Lambertz’s…

🚀 Cybersecurity Training – What Do You Wish You Knew Before Attending? Before every training, I always ask myself: 💭 “Am I skilled enough to keep up?” Once, I felt lost in a session but didn’t dare to say so – until someone else admitted feeling the same. Turns out, most of…

Spectre v2 is back again! Disclosing "Training Solo": 3 new self-training attack classes, 2 end-to-end exploits, and 2 new hardware issues that break domain isolation even when implemented perfectly. Joint work by @SanWieb @c_giuffrida: vusec.net/projects/train…