Unknown malware infecting iPhones catches users off guard

• Malware is not recognised by Apple. 
• TestFlight, a system of testing a new application before releasing it on App Store, cannot catch it. 
• Apple urges users to be careful when downloading from unknown sources. 

iPhone users expressed deep concerns about the threat of malware that can penetrate through Apple's own TestFlight tool, reported News18.

The cybercrime campaign is called "CryptoRom" which distributes fake cryptocurrency applications to both iOS and Andriod users.

While Andriod applications can be downloaded from third-party Play Stores, iOS traditionally has a stricter check for malware infiltration.

Apple uses TestFlight to allow new developers to test their applications on 1,000 users before releasing their product on the App Store.

However, the scammers have found a loophole due to which pre-release applications are not tested on the App Store.

The developers send the malware embedded in a weblink to the potential testers. For this reason, it is not possible to check whether the link is safe to download.

The malware-ridden applications are not even known to Apple.

Users are requested by the company to not download any application or software from unknown sources, even if the link is sent through TestFlight.