Casa

Bull Bitcoin, a French Bitcoin-only exchange licensed under MiCA, is challenging France’s DAC8 crypto data surveillance rules in court, arguing they create an insecure database risking user safety. The company claims DAC8’s data collection exacerbates physical threats to crypto users, citing rising kidnappings and attacks in Europe, particularly France.

Casa, a Bitcoin security firm, has launched four new security features to combat social engineering attacks, which accounted for the majority of crypto theft in 2025. The features include Guardian Mode, address whitelisting, suspicious account activity monitoring, and phone call detection, aimed at preventing unauthorized access and phishing attacks.

The author has been investing in Bitcoin for 6 years and is concerned about how their wife will access their crypto assets if something happens to them. They are looking for a solution that is not too expensive or complex. The author is testing a dead man's switch tool called Heretura.

Jameson Lopp warns of a potential Sybil attack against Bitcoin after a sudden surge of 200,000 fake P2P addresses, potentially representing hidden preparation for a technical attack. The anomaly appears to create more parasitic bandwidth load than a direct threat to consensus itself. Bitcoin's client software automatically distributes connections across different subnets, making it difficult for an attacker to monopolize all connection slots.