A griefing attack on the Bitcoin testnet network disrupted its normal functioning.

A griefing attack is when someone intentionally spams transactions on a network, increasing its workload and throwing off its usual operations. Griefing attacks often frustrates other network users, as it's harder to run applications on top of the system, while not financially benefiting the attacker.

Jameson Lopp, co-founder and Chief Security Officer of the crypto self-custody platform Casa, took credit for the incident.

"My griefing attack on Bitcoin testnet has resulted in over 165,000 blocks (3 years worth) generated in the past week," Lopp said in a post on the decentralized social media platform Nostr. When asked by another user if the griefing attack was worth it, Lopp responded that it cost him …