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01.08.2025 08:15 โ ๐ 13950 ๐ 5109 ๐ฌ 70 ๐ 56@reversity.bsky.social
Swiss security engineer specializing in reverse engineering and mobile app security, with a passion for AI and VR. Safeguarding the digital world and exploring cutting-edge technology.
Time has changed
01.08.2025 08:15 โ ๐ 13950 ๐ 5109 ๐ฌ 70 ๐ 56I donโt suppose I know someone who works at Tiktok security and can recover a hacked account for a friend?
07.01.2025 12:12 โ ๐ 5 ๐ 0 ๐ฌ 1 ๐ 0Who is your favorite xmas character? Me: Mr. Hankey.
25.12.2024 10:19 โ ๐ 5 ๐ 0 ๐ฌ 0 ๐ 0I would like to compare with Claude and ask it the same deep technical security questions but it always replies with ยซย I canโt help you do something potentially illegal or voiding your warrantyย ยป.
17.12.2024 19:47 โ ๐ 5 ๐ 0 ๐ฌ 0 ๐ 0I used Gemini 1.5 a few times and found it totally useless.
Today I got 2.0 and I was like ยซย wow itโs actually greatย ยป.
Then later I was like ยซย Damn itโs still totally dumb sometimesย ยป. Turns out it has reverted to 1.5.
So blind test confirms Gemini 2.0 is actually good.
Nice research by @hfn.bsky.social sec.cloudapps.cisco.com/security/cen...
04.12.2024 17:25 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0TFW a US company installs US-style bathroom stalls in Switzerland.
03.12.2024 19:49 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0Whatโs the difference between 1 dollar and 1 ruble?
โฆ
1 dollar.
Iโm usually quickly disappointed by products I buy nowadays, but the OnlyCat is amazing. Changed my momโs life.
25.11.2024 19:03 โ ๐ 4 ๐ 0 ๐ฌ 0 ๐ 0Russian spiesโlikely Russia's GRU intelligence agencyโused a new trick to hack a victim in Washington, DC: They remotely infected another network in a building across the street, hijacked a laptop there, then breached the target organization via its Wifi. www.wired.com/story/russia...
22.11.2024 12:06 โ ๐ 581 ๐ 329 ๐ฌ 12 ๐ 46The best kind
20.11.2024 20:17 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0Basebands are notoriously programmed to cooperate nicely (with other devices, towers, etc). They are not meant to work in adversarial conditions.
20.11.2024 19:28 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0I did a study once and I found one single defense company that sold a military smartphone with a proprietary baseband allegedly.
20.11.2024 19:17 โ ๐ 0 ๐ 0 ๐ฌ 1 ๐ 0Is it me or companies who develop โmilitary gradeโ smartphones (with the actual goal of selling to the military) with a custom OS on a mostly COTS phone with a standard baseband with the manufacturerโs firmware are pretty much selling snake oil?
20.11.2024 19:17 โ ๐ 4 ๐ 0 ๐ฌ 2 ๐ 1So if I were to want to fine tune an LLM on a 4090 to a specific knowledge domain, what model should I start with today? Or are there better solutions?(e.g. renting cloud A100)
14.12.2023 07:39 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0I thought it was only me.
04.11.2023 19:18 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0Interesting news from the world of carsharing: the biggest player on the EU market, Miles, is under criminal investigation, as they wrote some hacky code that modified (!) GPS data in the cars, resulting in 30-50 Mโฌ in unpaid parking fees.
This is huge: 1/n
www.tagesspiegel.de/berlin/schad...
Jesus
28.08.2023 07:51 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0Same
19.08.2023 15:58 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0Tu as quoi contre les clowns?
16.08.2023 17:53 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0I'm at a loss
10.08.2023 13:09 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0Continuosly baffled by Bluesky's lack of improvements:
- Invite only, still.
- Can't see content if not logged in.
- Can't upload gifs, videos or sounds.
- No DMs.
- Mobile app restarts everytime you switch apps.
- Logo/Banner looks like a placeholder.
- Loading times are slow.
- Can't see trends.
GH200 chip unveiled: 3x more memory than the H100! ๐
A bit of history about NVIDIA:
It's nothing crazy but I finally documented and released the tooling I created for inspecting the instruction behavior while building the lifter for my Binary Ninja plugin https://github.com/jrozner/msp430-testbench . Maybe this approach will be helpful for other embedded architectures for others?
10.08.2023 03:14 โ ๐ 2 ๐ 2 ๐ฌ 0 ๐ 0It looks like Booking.com has quite a few open SAP positions.
10.08.2023 12:30 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0I thought it was a Stielhandgranate
10.08.2023 12:20 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0In case the Russians invade you know.
08.08.2023 19:51 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0Probably SIG SG 510 at 14.
08.08.2023 19:48 โ ๐ 1 ๐ 0 ๐ฌ 1 ๐ 0Itโs 2023. I have no clue if you are talking about technology or something else.
08.08.2023 19:42 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0Still mainly Twitter. Bluesky for cat pictures. I need to find a good mastodon client. I checked LI a few times and there is more good content than I expected
13.07.2023 08:58 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0