The Block: Fireblocks denies rumors of being acquired by Visa, stating that it is currently untrue According to Foresight News, according to The Block, a Fireblocks spokesperson told The Block: "We have noted rumors about Visa potentially acquiring Fireblocks. We are also hearing about this for the first time, and currently it does not seem to be true. Foresight News previously reported that, according to Axios citing multiple sources, Visa has entered the later stages of negotiations to acquire stablecoin infrastructure and custody company Fireblocks for approximately $2.5 billion.