bug-bounty560
xss416
exploit359
google324
rce261
facebook232
microsoft212
cve173
writeup159
malware151
web3125
apple109
browser102
csrf97
account-takeover94
open-source91
sqli79
privilege-escalation73
dos72
phishing70
pentest69
cloudflare68
ssrf67
ctf65
supply-chain65
ai-agents63
auth-bypass62
reverse-engineering61
lfi54
cloud54
oauth49
aws48
tool46
node45
privacy44
race-condition43
react42
info-disclosure39
idor38
llm37
opinion35
cors34
clickjacking33
buffer-overflow33
automation33
machine-learning32
code-generation31
infrastructure31
postmessage30
docker28
0
2/10
transparency-report
Signal received a grand jury subpoena for account metadata on 37 phone numbers and disclosed the request after ACLU successfully challenged a nondisclosure order. Only 6 of 37 accounts yielded responsive information (account creation/last connection times), demonstrating Signal's minimal data retention due to end-to-end encryption of content and metadata.
privacy
encryption
metadata
government-request
subpoena
legal-process
transparency
end-to-end-encryption
law-enforcement
Signal
United States District Court for the District of Columbia
ACLU
Jennifer Stisa Granick
Brett Max Kaufman