bug-bounty562
xss423
exploit366
google323
rce261
facebook230
microsoft203
cve180
writeup159
malware151
web3125
browser106
apple105
csrf99
account-takeover99
open-source91
sqli79
privilege-escalation77
dos76
pentest73
cloudflare70
phishing69
ssrf66
ctf66
auth-bypass63
ai-agents63
supply-chain61
cloud61
reverse-engineering58
lfi56
aws51
oauth51
tool46
race-condition45
node44
react44
privacy44
info-disclosure39
llm37
idor37
opinion35
cors34
automation33
clickjacking33
machine-learning32
buffer-overflow32
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