Pascal Gujer's Avatar

Pascal Gujer

@evilmaid

security researcher | speaker | trainer | lockpicking | evil maid attacks | maker | https://threema.id/MPK39EB8 | hands-on-security.com

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20.09.2023
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Latest posts by Pascal Gujer @evilmaid

This was a really cool and awesome course ❤️! I learned so much in these two days and did a lot of stuff I never did and never heard about before. It was cool when (after some nasty debugging 🫠) the encryption key could finally be sniffed 🤘. Thanks a lot for your training, you guys rock!

31.01.2026 08:44 👍 6 🔁 2 💬 0 📌 0
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Still on the “wanting to do this stuff” side? Join our mailing list and get alerted when we host the next hands-on training.
www.hands-on-security.com/#trainings

29.01.2026 09:55 👍 0 🔁 0 💬 0 📌 1
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We’re doing it again!
No, not the fancy coffee corner — the famous “Breaking BitLocker” training you know from @BlackHatEvents is happening right now in Zurich 🇨🇭

Can’t wait to see the joy in the participants’ eyes when that key pops up tomorrow 🔑

29.01.2026 09:50 👍 1 🔁 0 💬 1 📌 0
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Hands-On Security Hands-On Security delivers practical cybersecurity training with a focus on hardware, firmware, and physical access attacks. Our flagship course “Breaking BitLocker” teaches real-world techniques…

We just launched our YouTube channel!
First Video: 60-seconds on how TPM sniffing breaks BitLocker — one of three real attacks trained at our Breaking BitLocker training
Zurich, 29–30 January 2026

More hardware security content is coming soon.
Subscribe & stay tuned:
🎥 youtube.com/@hands-on-se...

13.11.2025 22:09 👍 0 🔁 0 💬 0 📌 0
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🧠 BREAKING BITLOCKER — Early bird CHF 2999 until Nov 3. Seasoned BHUSA course (3 yrs) back in Zurich, 29–30 Jan 2026. Hands-on: TPM sniffing, DMA, bootloader patching, micro-soldering & RAM key extraction. Open to all professionals — especially valuable for LEA & forensics.
hos.direct/jan26training

20.10.2025 19:20 👍 3 🔁 1 💬 0 📌 0
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“Putting all eggs in one basket and all baskets on the Titanic.” - @stefanfrei.bsky.social 🧺🚢

When AWS goes down and takes half the internet with it, maybe it’s time to rethink our basket strategy.

Reuters report: www.reuters.com/business/ret...
AWS status page: health.aws.amazon.com

#AWSOutage

20.10.2025 11:15 👍 5 🔁 4 💬 0 📌 0
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✈️ Waiting for a flight → todo list created and stuff done ✅
Used ChatGPT to pull all unfinished projects from our past chats.
Clear head & new focus.
➡️ Stop doomscrolling in downtime.
Try:
🔥 “Go through our past chats and create a todo list with all the projects and unfinished tasks we discussed”

19.09.2025 18:30 👍 0 🔁 0 💬 0 📌 0
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🔑 International BitLocker Recovery Key Day – July 19th!

One year ago, many learned the hard way: No offline backup = Locked out!
Don’t get caught off guard – backup your BitLocker keys now!

💡 Quick tip:
manage-bde -protectors -get C:

#BitLockerDay #CyberSecurity #Encryption #DataProtection

19.07.2025 05:27 👍 3 🔁 2 💬 0 📌 0
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Got asked for tick tweezers while out fishing.
✅ My Care Plus kit had everything.
🎯 Remove slow, no twist, disinfect.
💡 Info: zecken-stich.ch/wie-wird-ein...
🎒 Kit: www.careplus-shop.de/first-aid-ki...
As a dad, you’re the one they rely on.
#DadHack #legendad #legenddad

21.06.2025 22:05 👍 0 🔁 0 💬 0 📌 0

Disappointed? Sure.
Defeated? Never.

Now I’ve got two free days in Vegas.
Fishing 🎣? Grand Canyon 🏜️? Hotel room reverse-engineering 🛠️?
What would you do?

#HackerLife #VegasIdeas

12.06.2025 07:32 👍 0 🔁 0 💬 0 📌 0
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🚨 Breaking 🚨
Our 2nd Breaking BitLocker session at Black Hat got cut.
Only 3 seats left for the Aug 2–3 run. 🔥
Hands-on. Gritty. Soldering scars? likely.

🎟️ hos.direct/bhusa25-23aug
🇨🇭 No Vegas? Zurich pre-run: hos.direct/jun25training

#BlackHat #CyberTraining #BitLocker

12.06.2025 07:32 👍 0 🔁 0 💬 1 📌 0
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Got a flat on the kid trailer.
Not just the tube - tyre was toast too. 😬

Swapped it and used my go-to fix:
the Xiaomi Portable Compressor.
🛠 Precise
♻️ Reusable
🚗 Lives in the car

Way better than CO₂ if you’ve got kids in tow.
🔗 amzn.to/45eSolC #ad

#DadHack #BikeLife #Xiaomi #legendad #legenddad

09.06.2025 05:36 👍 0 🔁 0 💬 0 📌 0
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US $19.23 | Makerbase CANable 2.0 USB to CAN adapter analyzer CANFD slcan SocketCAN CANdleLight klipper US $19.23 | Makerbase CANable 2.0 USB to CAN adapter analyzer CANFD slcan SocketCAN CANdleLight klipper

Lol, ChatGPT struggles a bit with breadboard drawing, but its still pretty impressive… and yes, I use red and green for CAN-H and CAN-L as given by the CANable 2.0 Pro dongle I am using:
s.click.aliexpress.com/e/_EvS01ii

04.06.2025 14:43 👍 2 🔁 0 💬 1 📌 0
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Spent half a day chasing ghosts on the CAN bus. Logic analyzer showed traffic, but the system was dead silent.
Turns out I forgot the termination resistor — the one thing I was told to check first.
Lesson: don’t skip the basics. 🧌🔧
#CANbus #DebuggingFails #ElectronicsLife

04.06.2025 14:41 👍 3 🔁 0 💬 3 📌 0
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Forgot the grill tongs at a Swiss Grillplatz.
So I built some — 2 sticks + fishing line = DIY spring-loaded BBQ tongs.
Dad Level: 💪
#legendad #legenddad

Full story here: www.linkedin.com/posts/pascal...

#LifeHack #DadHack #DIY

01.06.2025 06:11 👍 0 🔁 0 💬 0 📌 0
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Most people wait.
For clarity. For courage. For the “right” time.

But the truth? You'll rarely feel ready.
Movement brings clarity. Not the other way around.

That first step changes everything.

🚀 Ready to move?
→ Vegas Aug 4-5 hos.direct/bhusa25-45aug
→ Zurich Jun 26-27 hos.direct/jun25training

26.05.2025 22:06 👍 0 🔁 0 💬 0 📌 0
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🔧 Dad Hack: Fixing Broken Plastic Parts!
Unleash the secret combo: super glue + baking soda! 🪄

🛠️ drill, key files 😇, precision drivers, super glue, baking soda, plastic wrap
🔁 glue → sprinkle soda → repeat → file/shape
✅ Done! Hard as stone!

What’s your go-to repair trick? 💬

#legendad

24.05.2025 09:30 👍 3 🔁 2 💬 0 📌 0
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🔐 Break BitLocker with real tools — not slides.
Black Hat USA training, >50% booked. Early bird ends May 23, 11:59 PM PDT.

You’ll:
🧠 Learn BitLocker internals
📡 Sniff keys
🥾 Attack Bootloader
💻 Take home a hacked test laptop + logic analyzer

👉 hos.direct/bhusa25-23aug
👉 hos.direct/bhusa25-45aug

22.05.2025 20:06 👍 1 🔁 0 💬 0 📌 0
Preview
#bitlocker #bhusa #third #trainer #goals #attract #like #magnets… | Pascal G. *Don’t Wait for the Wind to Change – Set Your Sail: My Journey to Becoming a Black Hat Trainer* At 14, I read The Art of Intrusion by Kevin Mitnick and first heard about Black Hat and DEF CON. Fasci...

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? ;)
@blackhatevents.bsky.social

hos.direct/kjtyv

20.05.2025 00:17 👍 1 🔁 0 💬 1 📌 0
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“Why do you always carry a knife?”
My great-grandfather told my grandfather, who told my dad, who told me: “A real man always carries a knife.”

Today, I used mine to turn a normal bottle into a spill-proof straw bottle.
Dad Level achieved

What’s your best dad hack?

#LifeHacks #legenddad #legendad

17.05.2025 09:04 👍 0 🔁 0 💬 1 📌 0
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🔓 Bitpixie is Back!

Bypass BitLocker in under 5 minutes - no screwdriver needed.
Thomas Lambertz’s talk at 38C3 showed how.

🚀 Join our Breaking BitLocker trainings:
• Zurich: hos.direct/jun25training
• BH USA: hos.direct/bhusa25-23aug / hos.direct/bhusa25-45aug

⏰ Early bird ends in 8 days!

15.05.2025 20:42 👍 2 🔁 0 💬 0 📌 0
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🚀 Cybersecurity Training – Feeling lost?

Before every training, I always wonder:
💭“Am I skilled enough?”

Turns out, many of us feel the same! With Breaking BitLocker, we make it easy – from 0 to hero with minimal prerequisites.

Got a funny training story? Let’s hear it!
#CyberSecurity #Training

14.05.2025 14:55 👍 1 🔁 1 💬 0 📌 0

@blackhatevents.bsky.social time for a first post on Bsky 😉

13.05.2025 15:35 👍 0 🔁 0 💬 0 📌 0
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🚀LocalSend: The Open-Source AirDrop Alternative!

Transfer files over WiFi without internet! Works on Windows, macOS, Linux, Android & iOS.

💡Perfect for travel, meetings, or quick file swaps at home. No cables needed!

localsend.org/de/download
github.com/localsend/lo...

#OpenSource #FileSharing

13.05.2025 00:27 👍 4 🔁 0 💬 0 📌 1
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🚨 Our first Breaking BitLocker training at Black Hat USA 2025 is 30% SOLD OUT – weeks before early bird ends!

Learn to break TPM-only BitLocker with real hardware & hands-on techniques. Don’t wait – spots are flying!

Aug 2&3:
hos.direct/bhusa25-23aug
Aug 4&5:
hos.direct/bhusa25-45aug

#BHUSA

12.05.2025 20:13 👍 0 🔁 1 💬 0 📌 0

And that’s the difference: you’ve clearly been through Dunning-Kruger more than once - and learnt a lot each time. And you‘re surely more than just acting competent 😉

25.04.2025 18:45 👍 0 🔁 0 💬 1 📌 0
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“0-day” LPE - but only works if you know the password?

That’s not a vuln. That’s literally a feature.

Tired of seeing this stuff blindly reposted by folks who can’t tell access control from exploit. We need fewer click-chasers, more professionals.

25.04.2025 18:29 👍 0 🔁 1 💬 1 📌 0
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Easter food for thought 🐣
What if BitLocker isn’t as secure as you think?
We show 3 real-world attacks + mitigations at @blackhatevents.bsky.social #BHUSA 2025.
🧰 TPM sniffing, DMA, BitPixie.
🛠️ All hands-on. Hardware kit included.
🇺🇸 hos.direct/bhusa25-45aug
🇺🇸 hos.direct/bhusa25-23aug

17.04.2025 16:07 👍 1 🔁 0 💬 0 📌 1
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🚀 Did you know? You can use Touch ID for sudo on macOS - no more password typing in Terminal

🔐 Just add this at the top of /etc/pam.d/sudo:
` auth sufficient pam_tid.so`

Next time you run sudo, you’ll get a fingerprint prompt.
That's how sudo should feel in 2025.
#macOS #TerminalTips #DevHacks

28.03.2025 08:50 👍 0 🔁 0 💬 0 📌 0