Crypto Hacks and Security, Page 3

Stahl-Angelhaken zieht einen versiegelten Briefumschlag aus einem leuchtenden Laptop-Bildschirm, davor eine Goldmünze mit Bitcoin-Zeichen

Crypto Phishing After a Data Breach: The Warning Signs in a Fake Exchange Email

After every major data breach, the number of phishing emails sent in the name of crypto exchanges and wallet manufacturers rises. This article shows you how to recognise such a message, which data a reputable provider never requests by email, and what to do in the first hour after a click.

14 days ago

Eine goldene Münze mit Bitcoin-Symbol hängt an einem blanken Angelhaken über der Tastatur eines aufgeklappten Laptops im Dunkeln.

North Korean Hackers Drain 7,000 Crypto Wallets: What to Check on Job Offers and Coding Tests

Seven agencies, among them Germany's BND and BfV, warn about the WaterPlum group: 30,000 infected machines, more than 7,000 drained wallets. The bait is a job offer, the trap a coding test.

15 days ago

Goldene Bitcoin-Münze vor einem geöffneten Briefumschlag und einem Stapel unbeschriebener Blätter auf dunklem Holztisch, dahinter ein ausgeschalteter Monitor

Crypto investment fraud: when the tax office taxes phantom gains and what to check now

Between September 11 and 16, 2026, BaFin published thirteen consumer notices, seven of them on crypto-assets. Anyone who has paid into such a platform risks not only the loss but, in some circumstances, a tax demand on gains that never existed.

15 days ago

Hoher Stapel schwerer Metallmünzen ruht auf einer dünnen Glasmünze, die unter der Last Risse bekommt

$3.5 Million Against $550,000 of Collateral: How to Check Which Tokens Your DeFi Lending Market Accepts

One manipulated price was enough to borrow 3.5 million US dollars from the Nostra Finance money market on Starknet — backed by a token worth half a million dollars. Four figures from the documentation show you whether your own lending market has the same gap.

16 days ago

Verschlossenes Panzertor mit mehreren Riegeln, daneben eine offen stehende kleine Wartungsklappe, davor eine schwere Metallmünze

Check Your Safe Wallet Modules: How One Module Moved $7.7 Million Without a Signature

On September 15, 2,882 rsETH drained out of a Safe multisig without a single owner signing. An enabled module was to blame, and this is how you check your own wallet in five minutes.

18 days ago

Geschützte Krypto-Wallet wird von KI-gestütztem Phishing, Fake-Support und Deepfake-Symbolen bedroht.

AI Crypto Crime: How Scams Are Getting More Convincing

AI is sharpening fake support, deepfakes and phishing across the crypto space. Why the data still needs a careful reading and which security routines protect a wallet.

19 days ago

defi hack

Waltio Confirms Brevo Breach Touched Its User Emails: Here Is What To Do Now

Waltio has told users its Brevo account was accessed during the September breach that also hit Trezor and BitBox. Here is what was exposed.

19 days ago

Glaeserne Sanduhr mit rinnendem Sand neben einer Bitcoin-Muenze vor einem Serverschrank

Bitcoin Core 32.0 Arrives October 10: How to Check Whether Your Node Falls Out of Maintenance

The first release candidate for Bitcoin Core 32.0 has been out since September 14, with the release planned for October 10. With it, the 29 series loses its security updates - and our own count shows that affects 60 percent of reachable nodes.

19 days ago

Kleiner Einplatinen-Server mit Kühlkörper und glühenden Kontrollleuchten auf einer Metallwerkbank, daneben eine goldene Münze mit Bitcoin-Symbol

Updated Core Lightning via Docker? How to Check the Security Fix Is Really There

Your node reports v26.06.7 at startup and the security fixes can still be missing: four Docker tags served images with the right number and the wrong content in late August. Here is how to check your Lightning node's digest and catch up cleanly.

19 days ago

Ein aufgeschlagener Reisepass und eine leere Ausweiskarte liegen unter dem Lichtbalken eines Dokumentenscanners, daneben eine Metallmuenze mit Bitcoin-Zeichen

Revolut Data Breach: Your Files Are Public, and Here Is What You Can Do

Since September 14, the ID copies, KYC selfies and account statements stolen from Revolut have been published. What a password change no longer achieves, which rights the GDPR gives you, and why your Bitcoin history is the most sensitive part of the package.

20 days ago