The DFU function in iPhone permanently obstructs the interceptions of his owner's conversations - which can happen even when he thinks he has turned off his device!
Once again, Edward Snowden, the former agent of the US Secret Service, made revelations about the possibilities παρακολούθησης που έχουν υπηρεσίες όπως η NSA. Ο Σνόουντεν αποκάλυψε σε εκπομπή του αμερικανικού δικτύου NBC ότι υπάρχει δυνατότητα παγίδευσης των τηλεφώνων iPhone που ως γνωστόν διαθέτουν δεκάδες εκατομμύρια άνθρωποι σε όλο τον κόσμο. Με αυτή την παγίδευση μπορεί κάποιος να κρυφακούει όσα ο κάτοχος της συσκευής συζητά, ακόμη και όταν έχει κλειστή τη συσκευή του! Μετά την αποκάλυψη ειδικοί έσπευσαν να υποδείξουν έναν τρόπο ώστε να παρεμποδίζεται αυτή η παγίδευση των iPhones.
The implant
The trap that Snooden referred to is by a technique known in the world of tapping with the term "implant". The implant referred to by Snowden works in such a way that the owner of the trapped device thinks that it is switched off while in reality it is in (hidden) mode and receives commands such as to activate the microphone. So the concealer can listen what the device owner discusses.
The implant is in the form of software and can be placed in a device either if someone directly accesses it to place it or remotely if the device connects to the internet or through the system of frequencies on which the device operates. The implant can also be a component for the placement of which naturally requires direct access to the disputed mobile.
How to protect yourself
As was understandable, Snowden's disclosure, in addition to discussions, also caused a great deal of disturbance to iPhone owners. So some experts in the field of mobile phone companies initially rushed to confirm the former agent stating that there is indeed this security gap in iPhones but at the same time giving a solution. They even showed a way in which the function of the implant is hindered.
The iPhone owner must first plug the device into a power outlet or USB port. Then he should hold down the start button operation (power) of the device. After three seconds while holding down the power press the central function key of the device (home). Hold both keys down for ten seconds. First release the power button while continuing to hold the home button for about 15 seconds. The DFU mode will be activated, the conventional use of which is related to the software upgrade of the device, but, according to experts, it also blocks the specific implants.
Source: tovima.gr
