Security

34 articles tagged Security.

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Security

A hacked SEC account is not an ETF approval

Someone took the phone number behind the SEC’s X login and announced ETF approval a day early. Social media is not the Federal Register.EasyCryptoGuides · 9 Jan 2024, 21:00 UTC · 1 min read

Security

The Ronin hack was a bridge with too few keys, not Ethereum failing

Sky Mavis’s sidechain bridge did what a 5-of-9 scheme does when five keys are in the wrong hands. Ethereum mainnet kept producing blocks. The game’s on-ramp did not.EasyCryptoGuides · 23 Mar 2022, 18:00 UTC · 1 min read

Security

Wormhole was a bridge bug. Jump put the ETH back.

A signature-check failure on the Solana side of a cross-chain bridge printed IOUs that were not matched by ether on Ethereum. Users of the wrapped token got made whole by a company, not by maths.EasyCryptoGuides · 2 Feb 2022, 18:00 UTC · 1 min read

Security

Poly Network’s $610m hole was a bridge bug. The chains kept running.

A little-known interoperability protocol lost on the order of $610 million, then spent two weeks getting it returned. Ethereum did not halt. A keeper path did.EasyCryptoGuides · 10 Aug 2021, 16:00 UTC · 1 min read

Security

Ledger’s shop dump was a mailing list, not the device

A million emails, plus a large slice of postal details. Hardware wallets stayed intact. Phishing and, later, worse mail, used the list. Cold storage does not encrypt the invoice.EasyCryptoGuides · 20 Dec 2020, 18:00 UTC · 1 min read

Security

KuCoin’s theft was hot-wallet keys, not a broken chain

Initial headlines said $150 million; later tallies sat near $275–285 million across BTC, ETH and a pile of ERC-20s. An exchange login is still a company wallet.EasyCryptoGuides · 25 Sept 2020, 19:00 UTC · 1 min read

Security

Binance’s 7,000 BTC theft is why SAFU existed

Phishing and malware against users, then one withdrawal that passed existing checks. Roughly $41 million at the day’s print. Bitcoin confirmed a signature. It did not fail.EasyCryptoGuides · 7 May 2019, 20:00 UTC · 1 min read

Security

What is cold storage?

Cold storage means the signing keys stay offline. It is a practice, not a product name, and it does not forgive a bad backup.EasyCryptoGuides · 6 Mar 2019 · 3 min read

Companies

QuadrigaCX’s missing coins were a company, not a locked laptop

Canada’s then-largest crypto shop told customers the CEO was gone. Creditor protection followed. One person with the passwords is not a custody design. It is a single point of failure — or a cover.EasyCryptoGuides · 14 Jan 2019, 18:00 UTC · 1 min read

Security

Coincheck’s NEM theft was an exchange wallet, not a broken ledger

Then the largest exchange theft by dollar print. A Tokyo shop that was still only “deemed” registered kept customer NEM online. Custody vs the chain is the whole story.EasyCryptoGuides · 26 Jan 2018, 14:00 UTC · 1 min read