Cryptocurrency security covers theft, fraud, ransomware payments, wallet compromise, and blockchain risks involving digital assets and transactions.
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Background for this topic.
Cryptocurrency is a digital asset secured by cryptography and recorded on a decentralized blockchain ledger. It enables peer-to-peer transactions without intermediaries, relying on consensus mechanisms like proof-of-work or proof-of-stake to validate and add transaction blocks. Users control funds through private keys, which are critical for accessing and transferring cryptocurrency.
From an information security perspective, protecting private keys is paramount, as their compromise leads to irreversible theft. Cryptocurrency exchanges and wallet software are frequent targets for hacking, requiring robust security controls and vulnerability management. Additionally, the pseudonymous nature of transactions can facilitate illicit activities, challenging efforts to trace funds and enforce compliance. Defenses include hardware wallets, multi-factor authentication, and secure key management practices to mitigate risks inherent in cryptocurrency operations.
Netflix documentary part 2 in the works? Ilya Lichtenstein, who pleaded guilty to money-laundering charges tied to the 2016 theft of about 120,000 bitcoins from the Bitfinex exchange and was sentenced to five years in prison, has been released after roughly 14 months in the slammer.…
For the bargain price of 6.5 bitcoin A cybercrook claims to have breached Pickett and Associates, a Florida-based engineering firm whose clients include major US utilities, and is selling what they claim to be about 139 GB of engineering data about Tampa Electric Company, Duke Energy Florida, and American Electric Power. The price is 6.5 bitcoin, which amounts to about $585,000.…
Blockchain investigation firm TRM Labs says ongoing cryptocurrency thefts have been traced to the 2022 LastPass breach, with attackers draining wallets years after encrypted vaults were stolen and laundering the crypto through Russian exchanges. [...]
Visibility Gaps Increase the Risk of Certificate-Driven OutagesMoving to 47-day TLS and SSL certificate renewal cycles by 2029 will turn certificate management into an enterprise risk. "Automation and crypto-governance are now board-level imperatives. Enterprises can prepare for continuous renewal cycles without losing resilience," says Sectigo CEO Kevin Weiss.
Trust Wallet believes the compromise of its web browser to steal roughly $8.5 million from over 2,500 crypto wallets is likely related to an "industry-wide" Sha1-Hulud attack in November. [...]
A fourth wave of the "GlassWorm" campaign is targeting macOS developers with malicious VSCode/OpenVSX extensions that deliver trojanized versions of crypto wallet applications. [...]
Indian Police Arrests Ex-Coinbase Staffer Over Data Breach ChargesThis week, a $7 million Trust Wallet extension hack, arrest of an ex-Coinbase support agent, the U.S. sued alleged perpetrators of a $14M scam, Polymarket hack update, early release scheduled for former Alameda CEO, backlash on Flow's post-exploit rollback plan and Grubhub-linked holiday Bitcoin scam.
The decentralized intellectual property platform Unleash Protocol has lost around $3.9 million worth of cryptocurrency after someone executed an unauthorized contract upgrade that allowed asset withdrawals. [...]
Americans Extorted at Least 5 Firms, Earning $1 Million From a Medical Device MakerTwo American cybersecurity professionals who moonlighted as BlackCat ransomware gang affiliates pleaded guilty to using the crypto-locking malware to extort at least five victims in the United States, including a medical device maker that paid a cryptocurrency ransom worth over $1 million.
Trust Wallet says attackers who compromised its browser extension right before Christmas have drained approximately $7 million from nearly 3,000 cryptocurrency wallet addresses. [...]
In December 2024, the popular Ultralytics AI library was compromised, installing malicious code that hijacked system resources for cryptocurrency mining. In August 2025, malicious Nx packages leaked 2,349 GitHub, cloud, and AI credentials. Throughout 2024, ChatGPT vulnerabilities allowed unauthorized extraction of user data from AI memory