yan ✓

@bcrypt · joined 24 Nov 2012

security engineering @brave / helped build Let's Encrypt, Privacy Badger, and HTTPS Everywhere @eff / physics alum @mit / rabbit enthusiast

73 611Followers

335Following

20 233Posts total

92.8KViews on collected posts

Derniers posts

yan ✓@bcrypt22 Aug

this, unfortunately, goes hard 14.3K views · 75 likes · 1 reposts · 3 replies Open on X →

yan ✓@bcrypt8 Aug

if you’ve been on either side of a bug bounty you know the joy in it is gone now. it’s just AI reports coming in, AI patches going out, and decreasing human understanding of either. i wonder what is left of the security industry once the fun clever hacking parts are all 24K views · 233 likes · 21 reposts · 9 replies Open on X →

yan ✓@bcrypt20 Jul

planked for 9+ minutes continuously today to win a contest and now am regretting my hubris in even looking this up… https://t.co/8tuiy74a6u 6.6K views · 114 likes · 2 reposts · 4 replies Open on X →

yan ✓@bcrypt9 Jun

haha this reminds me that at one point during internal testing of Brave's AI agent (Leo), it refused to execute Step 3 on a todo list when Steps 1 and 2 were black text and Step 3 was white text (therefore invisible). but it got tricked into executing it when Steps 1 and 2 were 9.7K views · 60 likes · 6 reposts · 2 replies Open on X →

yan ✓@bcrypt8 Jun

Indirect prompt injection is a fundamental security challenge for AI. It's an issue for both local and cloud-based LLMs. After disclosing our findings to both companies, we're now sharing our analysis of Mozilla Tabstack and Cotypist today. https://t.co/rcxbgZlmLQ 38.1K views · 233 likes · 23 reposts · 8 replies Open on X →

yan ✓@bcrypt15 Apr 2022

could not for the life of me figure out how to buy a bus ticket in Milan. it was literally easier to get a shell 😆 https://t.co/AMf8dXvbEy 0 views · 6.8K likes · 599 reposts · 89 replies Open on X →

Face aux comptes de taille comparable

2 posts des 90 derniers jours, à côté de la tranche de 10K–100K abonnés. diffusé largement, mais peu de ces spectateurs réagissent.

Vues médianes19 164ce compte924médiane pour 10K–100K

Portée, %26.03%ce compte3.62%médiane pour 10K–100K

Engagement, %0.83%ce compte1.52%médiane pour 10K–100K

Indicateur	Ce compte	Médiane pour 10K–100K	Rapport
Vues médianes par post	19 164	924	20.7×
Portée (vues ÷ abonnés)	26.03%	3.62%	7.19×
Taux d'engagement	0.83%	1.52%	0.54×

Autres comptes de cette tranche → Comparer avec un autre compte → Comment ces repères sont établis →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.

Views per post

38.1K8 Jun

9.7K9 Jun

6.6K20 Jul

24K8 Aug

14.3K22 Aug

Last 5 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.

Engagement rate per post

0.71%8 Jun

0.70%9 Jun

1.82%20 Jul

1.10%8 Aug

0.55%22 Aug

Reactions — likes, reposts, replies and quotes — divided by views. Median for 10K–100K accounts is 1.52%.

What the audience does

Likes82.0%715 in total

Reposts6.1%53 in total

Replies3.0%26 in total

Quotes1.0%9 in total

Bookmarks7.9%69 in total

Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.

The follower curve appears once this account has two daily snapshots — we take one a day, and this one is on its first.