Beginner Guides
What Cold Storage Does and Does Not Protect
Cold storage describes where a key is held. It says nothing about how a transaction gets approved — which is where several…
Jordan Robertson
Published by Jordan Robertson
Guides & Education
How to Check What Your Wallet Has Approved
A token approval is a standing authorisation that outlives the transaction that created it. Here is how to see what yours have…
Guides & Education
How to Read a Transaction Before You Sign It
The most expensive failures in crypto have not broken cryptography. They changed what the signer was shown. Here is what to look…
Beginner Guides
How Crypto Bridges Work, and Why They Keep Getting Exploited
Bridges account for several of the largest losses on record. The reason is structural, and it is visible in every one of…
Beginner Guides
What Self-Custody Actually Means (And What It Doesn’t Protect You From)
Self-custody removes one category of risk and adds another. Understanding which is which is the whole decision.
News
Analysis: What the Coldcard Flaw Means for What a Hardware Wallet Actually Guarantees
A hardware wallet makes three promises. The Coldcard entropy failure broke the one nobody thought to verify — and the one a…
News
Coldcard RNG Flaw: Coinkite Discloses Five-Year Entropy Failure After Mass Bitcoin Theft
A 2021 firmware change routed Coldcard seed generation through a software pseudorandom generator instead of the hardware RNG, cutting entropy from 128…
News
Bridge Validation Failures at Wanchain and Verus Reported at $20.5m
Two more cross-chain bridges failed on message validation in July, taking a reported $20.5m combined — the fifth and sixth bridge validation…
The rest of the newsroom
Who else writes here, and what they are working on
AJ Vicens
Contributor · Ann Arbor, United States
AJ Vicens joined Conisec in 2026 as a contributor, compiling incident records from primary sources — official post-mortems, status pages and on-chain evidence —…
Jenna McLaughlin
Contributor · Washington, D.C., United States
Jenna McLaughlin joined Conisec in 2026 as a contributor, writing on crypto regulation and maintaining jurisdiction records, working from regulators' own publications rather than…
Conisec Staff
Newsroom
Conisec Staff is the byline on factual records compiled and verified by the newsroom rather than written by a single named reporter — Incident…