In response to the earlier uncovered bug for iPhones, Apple Watch, iPads and Macs, Apple has released a guide for iOS users affected by the flaw.

Apple published a new article on its support website, describing a 3-step process enabling people to open their Messages app after being hacked. First of all, you should ask Siri to read unread messages and then ask her to reply to the malicious message. After this, you’ll be able to open Messages again, where you should delete the entire thread or this particular message from the thread.

The recently uncovered way to crash iOS devices was built on text message containing specific characters from Arabic, Chinese and Marathi, which, if put in a specific sequence, could choke Apple’s CoreText system, crashing the iOS device and leaving its owner unable to access messages.

Once pranksters knew about the bag, they seized upon the message to crash friends’ iPhones. However, security experts have warned that this flaw can be used for more malicious purposes – for example, they suggested that programming errors in Unicode decoding and rendering may produce more similar errors, some of which may allow to gain access to elevated privilege levels on devices. Still, such an exploit had not yet been developed.

By the way, SMS exploits are not a novelty in security. 6 years ago, a couple of cybersecurity researchers discovered bugs that allowed them to hack in to iPhones by sending a series of text messages. Apple responded quickly and patched the flaw. This time, the company is also going to fix the messaging bug so that you won’t have to use Siri for this. The company confirmed it is aware of an iMessage problem caused by a specific series of Unicode characters and announced that it is developing a fix that will come with a software update.