ChainBleedv0.1 · open intel
← back to feed·2021-11-09 · 4y ago
Incident · SLOWMIST

Robinhood

Information Leakage
Estimated loss
VERDICT —UNRATED
Verdict pending. Auto-ingested incidents are reviewed before a public verdict is rendered.
▰ METHOD
Undisclosed
Root cause

Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.

Forensic narrative

Robinhood, a stock and cryptocurrency trading platform, stated that on the evening of November 3, an intruder entered the company’s system and stole the personal information of millions of users. The full names of the users, the names of about 310 users, the date of birth and postal code were leaked, and the more detailed account information of about 10 users was leaked. The intruder demanded blackmail for payment. The company notified law enforcement and continued to investigate the incident with the help of the external security company Mandiant. Robinhood stated that the attack had been contained. Robinhood believed that it did not expose social security numbers, bank account numbers or debit card numbers, and did not cause any economic losses to customers due to the incident. Attack method (per SlowMist): Information Leakage. Reported loss: -.

Primary source
https://blog.robinhood.com/news/2021/11/8/data-security-incident
Sourced from
slowmist
Technical record
chain
protocol
Robinhood
bug_class
unknown
date_occurred
2021-11-09
loss_usd
source_id
sm:robinhood::2021-11-09
Related — same bug class
2026-05-16
25d ago
ETH
Adshares
Bridge-Minter Fake-Mint Exploit (wADS)
bridge
$628.0K
AMBIGUOUS
2026-05-15
26d ago
MULTI
THORChain
Cross-Chain Router Exploit (multi-chain drain)
bridge
$10.70M
AMBIGUOUS
2026-05-13
27d ago
BSC
Mail Token
BSC token contract exploit (vector undisclosed)
accounting
$54.6K
UNRATED
2026-05-13
27d ago
ARB
ShapeShift FOX Colony (Colony Network)
executeMetaTransaction → resolver-repoint via setTarget → delegatecall drain
access-control
$132.7K
AUDIT-CATCHABLE
2026-05-13
28d ago
ETH
Transit Finance
Contract Vulnerability
logic
$1.88M
UNRATED
2026-05-13
28d ago
ETH
TAC Cross-Chain Layer (TON Side)
Contract Vulnerability
logic
$2.80M
UNRATED
ChainBleed — live web3 threat intelligence