More than 280 blockchains at risk of ‘zero-day’ exploits, warns security firm

280 or more blockchain networks are estimated to be at risk of “zero-day” exploits that could put at least $25 billion worth of crypto at risk, according to cybersecurity firm Halborn. In a Mar. 13 blog, Halborn warned of the vulnerability it dubbed “Rab13s” — adding it has already worked with some blockchains, such as Dogecoin, Litecoin and Zcash, to…