Security

Revoking an EIP-7702 delegation takes two moves: call eth_getCode on the target chain to see whether the code field begins with the 0xef0100 23-byte designator, then sign a type 0x04 transaction that authorizes the zero address from inside the wallet. Checking every chain takes as long as the number of chains involved, and the revocation itself needs one onchain confirmation.

Learn how personal data leaks enable targeted crypto phishing, account takeovers, and asset theft, and discover practical ways to protect exchanges and wallets.

What is PHP2Shell? Explore PHP remote code execution risks, potential threats to crypto accounts and Web3 wallets, and practical security measures.

Losing cryptocurrency through a hack, phishing attack or accidental transfer can be difficult to resolve because confirmed blockchain transactions generally cannot be reversed. However, this does not mean stolen cryptocurrency can never be recovered.

Explore Starknet’s potential transition from an Ethereum Layer 2 to an independent Layer 1, including security assumptions, data availability, bridging, governance, ecosystem migration, and the implications for STRK.

Learn how wallet signatures, hash functions, and STARK proofs differ, how quantum computing could affect blockchain security, and what to examine when evaluating Starknet’s post-quantum roadmap.

What is a hardware wallet supply chain attack? Explore the 2026 Ledger security incident, how hardware tampering threatens cold wallets, and practical ways to protect crypto assets.

Discover the 7 major hardware wallet security risks in 2026, including supply chain attacks, seed phrase leaks, blind signing, firmware vulnerabilities, and phishing. Learn how to protect your crypto assets.

A Telegram crypto scam often uses fake customer service or “account recovery” scripts to push users into handing over login codes, phone-binding details, or even a seed phrase—opening the door to Telegram, wallet, or exchange-account takeover. ## Official Sources - [FBI: Warning on scammers impersonating the IC3](https://www.fbi.gov/investigate/cyber/alerts/2025/fbi-warns-of-scammers-impersonating-the-ic3) - [Internet Crime Complaint Center (IC3)](https://www.ic3.gov/) - [Telegram FAQ](https://telegram.org/faq) - [FTC ReportFraud](https://reportfraud.ftc.gov/)

After a Telegram recovery scam, stop all contact first, end suspicious sessions and unknown devices, rotate Telegram and exchange passwords plus 2FA, then review wallet approvals and transfers. Login-code leaks and seed-phrase leaks need different branches; preserve evidence and report through IC3, FTC ReportFraud, or the platform help center.

To verify an official Telegram channel for crypto use, start from the brand’s website or app-store listing, match the @username and public link character by character, refuse unsolicited “support” DMs, skip stranger ticket links, and report suspects only through known in-app support or public complaint portals.

Layered crypto storage splits balances by how often they move and how large they are—keeping frequent small amounts on a hot trading layer, isolating medium-term savings, and minimizing online exposure and signatures for long-term cold holdings.

Securing crypto assets means managing three layers together: where funds are stored, who can authorize moves, and how everyday actions are verified—by splitting balances by use case, tightening login and withdrawal controls, and building habits that reject phishing and reckless approvals.

Crypto staking allows holders of proof-of-stake assets to earn rewards by participating in network security, either directly or through a validator, staking pool, liquid staking protocol, or exchange.

Political meme coins have become a scam hotspot due to celebrity effects and news hype. Common scams include namesake fakes, false celebrity endorsements, and high-concentration Rug Pulls. Identifying real from fake requires verifying contract addresses, checking official channels, analyzing holder distribution, cross-verifying information, and being wary of any "official authorization" claims.