🚨 Crypto News Today – June 21, 2026

1. Ethereum Introduces New Wallet Security Standards
The Ethereum Foundation has released new "clear signing" guidelines designed to protect users from phishing attacks and malicious transactions. Instead of approving unreadable transaction data, users will see human-readable transaction summaries before signing.

2. Bitcoin Holds Above $63K Despite Market Uncertainty
Bitcoin is trading around the $63,000–$64,000 range as investors watch ETF flows, interest-rate expectations, and global economic developments. Market sentiment remains cautious but stable.

3. Ethereum and Bitcoin Move Sideways
Both Bitcoin and Ethereum have spent the week trading within a relatively tight range, showing a lack of strong bullish or bearish momentum as traders await new catalysts.

4. Major Crypto Bot Loses $7.5 Million
One of Ethereum's largest MEV ("sandwich") trading bots was reportedly exploited and drained of about $7.5 million after approving malicious transactions, highlighting ongoing security risks in DeFi.

5. AI Is Becoming a Major Crypto Security Tool
Crypto security firms are increasingly using AI-powered systems to detect vulnerabilities, audit smart contracts, and prevent exploits before they happen, potentially making the industry safer and more efficient. #Ethereum #Bitcoin #Cryptonews