Wikileaks today published a trove of documents, allegedly taken from the CIA, that detail the government’s efforts to hack popular devices like iPhones, Android phones, and Samsung smart TVs. But Apple is pushing back against claims that the CIA’s hoarded vulnerabilities for its devices were effective.

The documents, if they are indeed legitimate, include charts that detail iOS exploits that would allow the CIA to surveil iPhone users and, in some cases, control their devices. Some of the exploits may have been developed in-house, while others appear to have been purchased, copied or downloaded from non-governmental sources.

However, Apple says that many of the iOS exploits in the Wikileaks dump have already been patched and it is working to address any new vulnerabilities.

“Apple is deeply committed to safeguarding our customers’ privacy and security. The technology built into today’s iPhone represents the best data security available to consumers, and we’re constantly working to keep it that way. Our products and software are designed to quickly get security updates into the hands of our customers, with nearly 80 percent of users running the latest version of our operating system. While our initial analysis indicates that many of the issues leaked today were already patched in the latest iOS, we will continue work to rapidly address any identified vulnerabilities. We always urge customers to download the latest iOS to make sure they have the most recent security updates,” an Apple spokesperson said in a statement to TechCrunch.

The Wikileaks documents also contain exploits designed for Android. A Google spokesperson did not respond to a request for comment. 

This isn’t the first time the CIA has targeted mobile phone manufacturers in an effort to spy on certain customers — the Intercept reported in 2015 that the agency had worked to compromise iPhones and iPads.

If you’re concerned about the security of your device, it’s always a good idea to keep your software up-to-date.