A hackers group that calls itself the Shadow Brokers recently published on web and made accessible to everyone sophisticated hacking and surveillance tools. They claim that those tools come come from breach of NSA.
Released hacking tools exploit vulnerabilities in software that the vendor doesn’t know about (so called “zero day vulnerabilities”) and thus haven’t fixed – making everyone using this software a potential target. Published tools revel that United States government has been hacking for decades without big attention.