U.S. President Joe Biden said Friday that, in a conversation with Vladimir Putin, he issued a warning about ransomware attacks on U.S. companies made by entities based in Russia.
Chainalysis' latest fundraise sees the firm's valuation grow by $2 billion since March, coinciding with a massive surge in interest in crypto tracking.
U.S. officials said Monday that they have recovered "a majority" of the bitcoin funds paid after a ransomware attack against an American pipeline operator.