Apple urged their users to update to iOS 9.3.5 following reports that a hacker breached an iPhone device at UAE.

This after an attacker installed a spying tools that can activate the phone's camera, microphone, track the owner's movement and log messages in the iPhone of human rights defender Ahmed Mansoor.

Pegasus is a name of software that can turn your phone into a mobile surveillance device. Once it is installed secretly in your phone, it is impossible to detect. If the victim clicks the link-carrying messages, the attacker could access almost everything, from call logs to emails.

The malicious software  was discovered when Mansoor received a text about a promise of new secrets of detainees being tortured in United Arab Emirates jails. He immediately suspected that the text was malicious and so he did not click on the link instead, he turned it over to CitizenLab researchers Bill Marczak and John Scott-Railton.

The way how Pegasus would hack phones was finally found out by Lookout, a company specializing in mobile security matters. Lookout pointed out that NSO Group, Israel-based company was behind the attack. This company sells sophisticated hacking tools to militaries, governments and intelligence agencies.

The threat of your very personal data such as email passwords, confidential messages, and any other private information is in danger with this kind of malicious tool. As for now it is best to update your iPhone to the latest version iOS 9.3.5.