We released a new mainnet version v2.2.0 at https://github.com/nknorg/nkn/releases. This version adds a few major features including client authorization, client message cache, transaction pool sync. In addition, this version contains several performance optimization, bug fixes and security patches. Upgrade is highly recommended.

Transaction spamming, or Tx spamming, is one of the persistent security attacks on these high performance blockchains that can wreak havoc for extended periods of time. The attackers might or might not gain any financial benefit, but can certainly make everybody’s life quite miserable at relatively low cost.

In this article, we define what is transaction spamming, how to detect it, and how to deal with it. Recent examples from 4 leading projects were studied, as well as a best practice is summarized.

Becoming a Blockchain Developer: A Complete How to Guide Blockchain technology has industry-disrupting capabilities. The disruptive brainchild of a mysterious person or a group of people known as Satoshi Nakamoto, it’s a time-stamped series of immutable pieces of data or records.  A group of computers not owned by any single entity manages these records. As […]