Apple has issued a new security update, in response to notifications by experts of vulnerabilities on mobile phone software that could be taken advantage of.

If you own and use an Apple mobile product, it is a good idea to update your system in order to protect your data.

The New York Times reports that, earlier this month, Bill Marczak and John Scott Railton, from the Citizen Lab at the University of Toronto’s Munk School of Global Affairs, and Lookout, a San Francisco mobile security company both warned Apple of openings in their software that a group out of Israel could be taking advantage of.

NSO Group is being called “one of the world’s most evasive digital arms dealers” and they work by targeting and following dissidents and journalists.

The company sells software that attacks a victim’s mobile phone by tracking and reading text messages, emails, collecting passwords, tracking calls and contacts, and even recording sound all while locating the whereabouts of the person using the mobile phone.

To fix the holes, users can obtain a patch through a normal software update issued by Apple in their recent release of a patched version of the mobile software, i.O.S 9.3.5.

While those in immediate danger of being caught as victims in these hacks are generally people labeled as dissidents and those who work in journalism in areas of conflict, it is always a good idea to keep software up to date.

Apple spokesman Fred Sainz said, “We advise all of our customers to always download the latest version of iOS to protect themselves against potential security exploits.”