U.S. sanctions in recent months have hammered a handful of cryptocurrency services used by ransomware groups, suggesting Washington can effectively target some tools hackers use to convert digital ransom payments into cash. The Treasury Department since last year has sanctioned at least three Russia-based crypto exchanges, as well as a mixing service hackers allegedly used to help launder dirty money, barring U.S. companies from transacting with them.
Read the article: The Wall Street Journal
