Recent research by Chainanalysis suggests that the amount of bitcoin (BTC) spent on illegal transactions this year could hit a record high of $1 billion, even as the ratio of illegal to legal transactions is shrinking, according to a report by Bloomberg on July 1.
As per the report, the total flat value of BTC spent on illegal activity so far this year is thought to be $515 million. The research suggests that by the end of the year, this figure will double to reach $1 billion.