Cryptocurrency security covers theft, fraud, ransomware payments, wallet compromise, and blockchain risks involving digital assets and transactions.
Search across headline titles and summaries.
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.
Authorities Uncover 30,000 LockBit Bitcoin AddressesCryptocurrency trading platform Binance restricted access to 85 accounts as part of an action against the LockBit ransomware affiliates, and authorities estimated that members of the now-defunct ransomware-as-a-service operation had pocketed "hundreds of millions" in ransom.
With Over $1 Billion in Annual Proceeds, Don't Expect Attackers to Give Up the LifeOnce the dust settles on the LockBit disruption, what will be the state of ransomware? Expect attackers to continue refining their tactics for maximizing profits via a grab bag of complementary strategies, including crypto-locking shakedowns and data-theft extortion.
Also: FCA Rounds Up Noncompliant Firms; GoFundMe Shuts Down Tornado Cash FundraiserThis week, FixedFloat lost $26 million in a hack, the U.K. Financial Conduct Authority found illegal promotions of cryptocurrency, GoFundMe shuttered a Tornado Cash fundraiser, and an Australian cop allegedly stole $4 million worth of bitcoins.
Numerous Impediments Remain If Administrators Attempt to Reboot the OperationThe notorious ransomware-as-a-service group LockBit, disrupted by law enforcement this week, was developing a new version of its crypto-locking malware prior to being shut down, security researchers reported. Even so, experts say it's unlikely the group would be able to successfully reboot.
Numerous Impediments Remain, Should Administrators Attempt to Reboot OperationThe notorious ransomware-as-a-service group LockBit, disrupted by law enforcement this week, was developing a new version of its crypto-locking malware prior to being disrupted, security researchers report. Even so, experts say it's unlikely the group would be able to successfully reboot.
Numerous Impediments Remain, Should Administrators Attempt to Reboot OperationThe notorious ransomware-as-a-service group LockBit, disrupted by law enforcement this week, was developing a new version of its crypto-locking malware prior to being disrupted, security researchers report. Even so, experts say it's unlikely the group would be able to successfully reboot.