Apple has urged their Laptop and desktop users to update their OS X El Capitan and Yosemite operating systems immediately to protect the devices from cybercriminals.
They have also issued an update for its Safari internet browser, "visiting a maliciously crafted website" that could allow hackers to install monitoring software.
The released updated software will affect OS X 10.11.6 El Capitan, 10.10.5 Yosemite and Safari 9.1.3.
Apple has released the warning after a week of report of an attempt to hack a man's iPhone using a link that could have provided access to his calls and messages
The malicious software is capable of tracking a text message, calendar entry, email sent through Gmail or WhatsApp message, and it constantly updates and sends the user's location from the phone's GPS and various passwords.
A security researcher of Lookout, Mike Murray, described it as "the most sophisticated spyware package we have seen in the market".