Haarlems
haarlems.bsky.social
Haarlems
@haarlems.bsky.social
I do security
If there's interference in an oversimplified case, what if we consider motive? Fake First seems.. sensible :)
October 1, 2025 at 1:32 PM
While truth occurs, its truthful reporting is unlikely. Stating a non binary fact to be true is frequently accompanied by arbitrary lines drawn in the sand by the storyteller. Whoever tells the tale, leaves a nuance that muddles the truth.
October 1, 2025 at 1:32 PM
This was so good!
July 23, 2025 at 4:04 PM
I reached the same conclusion after reading his autobiography. Nothing like a man's own words to betray him
July 14, 2025 at 7:49 AM
+1 for adoption fatigue
July 13, 2025 at 4:25 PM
So accurate. Ever since I read it, half my windows conversations start with "when I was reading Windows Security Internals". I'm knowingly accepting being annoying, that's how good James' book was
July 2, 2025 at 8:58 AM
It was amazing! And it wouldn't have happened without Chris Brenton's and Troy Wojewoda's courses on Antisyphon. Top notch content, keep doing you :)
July 1, 2025 at 4:07 PM
The more I look at his website, the more I wonder where this man and his bottle have been all my life
June 27, 2025 at 8:11 PM
I was looking for a prism but now that sounds just so plain
June 27, 2025 at 8:07 PM
The code and slides are both on my github. For any feedback, I'd be grateful.
June 27, 2025 at 6:57 PM
TLS data exfiltration: smuggling bytes with ClientHello is a very low throughput "technique". Not really a technique, more like a way for me to learn networking protocols.

Blog post here: medium.com/@haarlems/tl...
TLS data exfiltration: smuggling bytes with ClientHello
This is a bit of research on a very low throughput (65 bytes) data exfiltration via TLS ClientHello message fields, using GREASE…
medium.com
June 27, 2025 at 6:57 PM
I need this on a tshirt
May 8, 2025 at 12:46 PM
Is it malware or is it enhanced endpoint telemetry
April 27, 2025 at 7:45 AM
@tiraniddo.dev did us all a solid with this one, I totally agree
April 27, 2025 at 4:35 AM
This looks like something @jags.bsky.social could do an easy 6 minute rant on
April 25, 2025 at 3:10 PM
Haha some bits hit too close to home
April 25, 2025 at 3:04 PM
This is your reminder to stick it to the bank man.
April 25, 2025 at 2:15 PM