A group of hackers calling themselves “The Shadow Brokers” released a trove of hacking tools last Friday, claiming they were stolen from the National Security Agency (NSA) and designed to target Microsoft products.

That initial report had caused considerable alarm among tech security experts, who cited the 300 megabytes of software exploits stolen from the NSA as the most damaging release from the group of hackers to date.

But in what has some speculating of possible government assistance, Microsoft had preempted the release by patching all of the major exploits a month ago in March. Following the announcement made by the Shadow Brokers, Microsoft quickly released their own statement on Friday, listing the exploits and explaining that all had been addressed by their Security Response Center in previous updates.

In addition to the exploits against Microsoft products, the group released evidence of U.S. hacks against banks that use networked systems with technology from the Society for Worldwide Interbank Financial Telecommunication (SWIFT). SWIFT has previously been the focus of American intelligence and law enforcement agencies seeking to gain access to information related to terrorist financing operations. The American program, called the “Terrorist Finance Tracking Program” was publicized in 2006 by a number of American news outlets like The New York Times, leading to a new “SWIFT-agreement” after privacy concerns were raised.