There's a new Apple "text bomb", which can cause an iPhone or even a Mac to crash and in this particular instance, the text is shared in the form of a website link on iMessage. The bug takes the advantage of this feature to infect the devices.
The security flaw was discovered by software developer Abraham Masri, who informed Apple of the bug before releasing details of it on Twitter.
Other issues included Safari crashing and "dramatic lag" in the Messages app on iOS and macOS. Going back into the thread in Messages that contained the link would cause the app to continually crash, which forced both parties to delete the thread.
As ever, the best method of defence against this kind of bug is to regularly update your phone, tablet and computer's software. Masri said his intentions were good - he had alerted Apple to the bug ahead of time and said he only posted it publicly to get Apple's attention.
Apple has faced a number of embarrassing security mishaps over the past few months, with majority affecting macOS. Once the link is clicked on, it will affect the user and sender of the link.
"Nasty. But, thankfully, more of a nuisance than something that will lead to data being stolen from your computer or a malicious hacker being able to access your files", added security researcher Graham Cluley.
Luckily though, Apple is well aware of the problem and has put a fix in place with the release of iOS 11.2.5 Beta 6 which was seeded to developers nearly 24 hours ago. He said he'd reported the bug to Apple the previous day, he told BuzzFeed, but had not heard anything from the company.