dos

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Tor Developers Pursuing ‘Anonymous Tokens’ to Stop Hacks and DoS Attacks
Tokens could be included in a users traffic request, which would allow websites accessible through the Tor network to “intelligently prioritize which requests it answers.”
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Wasabi Wallet Patches Flaw That Could Have Thwarted Bitcoin Privacy Feature
The flaw’s discovery is an example of cooperation in the open-source community, where devs are constantly tinkering to improve their peers’ software.
Bullet holes in a front windshield

spam, food
Ethereum Developers Stymie Blockchain Spammer's New Attack
An effort to disrupt the ethereum blockchain was quickly put down today by a team of network developers.
spam, food

Bug
Zcash Releases Software Fix After Denial-of-Service Bug Discovery
The development team behind the zcash project has released a new software update following the discovery of a denial-of-service vulnerability.
Bug

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Bitcoin Unlimited Nodes Recover After Second Bug Exploit
A DoS attack exploiting a bug in the Bitcoin Unlimited client caused over 100 nodes to disconnect from the bitcoin network on Tuesday.
software code