← The Polylog Crypto Briefing
Morning Edition · Monday, June 15, 2026
Security Roundup: Bridge and Mint Exploits Drive a Heavy Run of June Losses
Syscoin's bridge bled an estimated $10 million through a proof-validation flaw, while TesseraDAO lost about $2.5 million to an unauthorized token mint.

Several on-chain incidents tracked by Rekt News underscore a recurring set of failure modes this month. The largest involved the Syscoin bridge, where a parsing error in the relay's proof-validation code let an attacker mint approximately 5…
Continue reading the Crypto briefing
Subscribe to read every story and its analysis. The Global briefing stays free.
More from this edition
- US-Iran Accord Reopens Strait of Hormuz, Pulling Risk Premium Out of Oil and Lifting Bitcoin
- Europe's MiCA Grace Period Ends July 1 With Only 14 Fully Licensed Trading Platforms
- Ethereum Researcher Outlines Post-Quantum Account Protection for $0.07 Without a Hard Fork
- Deprecated Aztec Connect Contract Drained of About $2.1 Million
- Hoskinson Says Cardano's 1,096 Bitcoin Paid for a 2016 Audit as Critic Demands Records
- Miden Pitches "Practical Privacy" as the Condition for Blockchain's Next Phase
- Aztec Launches Alpha Network and Sharpens the Debate Over Who Controls Privacy
- SEC Clears T. Rowe Price Multi-Asset Crypto ETF for NYSE Arca
- Former SEC Lawyers Question Strength of a Tokenization Exemption Over a Full Rule
- US-Listed HYPE Funds Draw $161 Million in a Month as Wall Street Bets on an On-Chain Exchange
- Aerodrome Rebuilds Liquidity Incentives Around Predicting Where Capital Is Needed
- Banks Move Into Bitcoin Custody as a Quantum Question Sits Inside the Vault