Crypto Hacks and Security, Page 5 of 21

Reihe fabrikneuer, fest verschlossener Vorhängeschlösser an einer Stahlstange, am Ende ein altes offenes Schloss, daneben eine Bitcoin-Münze

MEXC Refunds $340,000: The Attacker's API Key Survived the Account Freeze

During an account takeover at MEXC, an attacker created an API key with withdrawal rights that the exchange did not revoke when it restored the account. Twenty-seven minutes after the withdrawal freeze expired, roughly $340,000 was gone.

27 days ago

Massives Stahltresortor einen Spalt offen, der Riegel unversehrt, ein fremder Messingschlüssel steckt in einem Nebenschloss am Rand, davor eine Münze mit Bitcoin-Zeichen

Bitget discloses the flaw at its supplier and sets out the timetable for withdrawals

Bitget has disclosed how the attackers reached its withdrawal systems on September 24: through a previously unknown flaw in a security product it had bought in. The second stage of the withdrawal schedule opens today at 08:00 UTC, and for the balance you keep on any exchange the case changes the arithmetic.

27 days ago

Zwei Münzen auf dunklem Stahl: die linke vollständig in einem milchigen Eisblock eingeschlossen, die rechte frei daneben im Licht

Ripple Cannot Freeze 83 Million Dollars in Stolen XRP: What to Check in Custody and Deposits

The attacker from the Bitget incident has moved around 83 million dollars in XRP, and Ripple has no technical means to stop it. What can be frozen, what cannot, and why an account freeze also hits investors with no connection to the case.

29 days ago

Drei gleich aussehende Metallschlüssel auf einer Schiefertafel, zwei davon stecken in einem Messingmechanismus, der dritte liegt unberührt daneben, davor eine geprägte Münze

Setting Up a Multisig Wallet: When Two of Three Keys Are Worth It for You

A multisig wallet demands several keys for a transfer and so makes a single theft worthless. We show which threshold fits you, what you have to back up besides the keys, and why most setups fail at the configuration.

last month

Durchtrennte Telefonkabel mit blanken Kupferadern neben einem leeren Messing-Amtsstempel und einer Goldmünze mit Bitcoin-Zeichen

Operation Herakles disconnects 13,888 phone numbers: what to check on crypto investment calls

Six authorities have disconnected 13,888 phone numbers used by investment fraudsters to call their victims in Operation Herakles, 9,304 of them in the past three months alone. What the Federal Network Agency now requires of telecoms providers and which three checks protect you from the scheme.

last month

Gespanntes Sicherheitsnetz aus Tau über dunklem Abgrund, in der Mitte drückt eine schwere Münze mit Bitcoin-Zeichen das Netz durch, links hängen zwei gerissene Taue herab

Crypto Exchange Protection Funds Recalculated: What Really Covers Your Balance After the Bitget Hack

The $351.6 million attack on Bitget would eat up three quarters of the exchange's in-house protection fund. We retrieved the protection promises of several exchanges ourselves and measured them against deposit insurance and MiCA liability.

last month

Offene Tresortür, im Schloss steckt noch ein alter Messingschlüssel, davor liegen verstreute Münzen

Magic Eden and Limit Break exploit: 530 WETH and thousands of NFTs drained, how to revoke your approvals

A bug in Limit Break's Payment Processor, the protocol behind Magic Eden's former Ethereum marketplace, has been draining NFTs and WETH since Thursday. Our blockchain analysis shows 911 affected wallets. What happened, why hardware wallets do not protect you and which two approvals to revoke now.

last month

Nächtliches Steinportal mit hohen Säulen, davor auf einer Brüstung eine große Goldmünze mit eingeprägtem Bitcoin-Zeichen

BaFin Warning: What Happens When You Enter Your Data on an AI Crypto Platform

On September 23, 2026 BaFin warned about 39 near-identical websites presenting themselves as AI-powered crypto trading platforms. On its findings these pages take no money but pass the data left in their contact form on to unauthorized trading platforms.

last month

Aufgebrochenes Stahl-Tresortor mit verbogenen Riegeln, davor eine physische Münze mit eingeprägtem Bitcoin-Zeichen

Bitget Pauses Withdrawals: Where Existing Customers in Europe Stand

Bitget reports unauthorised outflows of around $351.6 million (later revised to $387.5 million) and has suspended withdrawals. For existing customers in Europe, that closes the one route MiCA had left them.

last month

Aufgebrochenes Metall-Kettenglied neben einem schweren Messingschlüssel und einer Münze mit rautenförmigem Symbol auf dunklem Stahl

Fetch.ai Bridge Exploit: What FET, AGIX and NTX Holders Must Check Now

A single call drained the FET liquidity of the SingularityNET bridge on September 19, and hundreds of millions of unbacked tokens were minted afterwards. What is affected, what Fetch.ai has halted, and what to check in your wallet, at your exchange and on tax.

last month