Imagine a situation where you plug your iPod (or iPhone/iPad) into your Mac, for whatever reason. The connected device will start charging immediately, iTunes (RIP) will detect the connection and offer you an adequate response. Just everything the way it always worked. When suddenly a console appears on your screen, showing one command after another, without any activity from you. This is exactly what can happen if, instead of the classic original USB-Lightning cable, you use another, not quite original one.
You can't tell it from the original, but in addition to charging and data transfer, this cable can do many other things. Behind it is a security expert and hacker who calls himself MG. There is a special chip inside the cable that allows remote access to the infected Mac when connected. A hacker who is thus waiting for a connection can take control of the user's Mac after the connection is established.
Demonstrations of the cable's capabilities were shown at this year's Def Con conference, which focuses on hacking. This particular cable is called O.MG Cable and its greatest strength is that it is indistinguishable from the original, harmless cable. At first glance, both are identical, the system also does not recognize that something is wrong with it. The idea behind this product is that you just replace it with the original one and then just wait for the first connection to your Mac.
I will be dropped #OMGCables over the next few days of defcon.
I will also have 5g bags of DemonSeed, if that's your thing.
To connect, it is enough to know the IP address of the integrated chip (to which it can be connected wirelessly or via the Internet) and also the way to connect to it. Once the connection is made, the compromised Mac is under the attacker's partial control. He can, for example, work with the Terminal, which controls practically everything in the entire Mac. The integrated chip can be equipped with several different scripts, each of which has different functionality according to the attacker's requirements and needs. Each chip also contains an integrated "kill-switch" that immediately destroys it if revealed.
Each of these cables is handmade, as the installation of tiny chips is very difficult. In terms of production, however, there is nothing complicated, the author made the small microchip at home "on his knee". The author also sells them for $200.
Technically nothing complicated, I made a "fake flash drive" from attiny85. It pretends to be a keyboard (HID) and sends key sequences. But it's funny to build it into such a small case on the lightning cable ;-)
David Hanak 
Technically nothing complicated, I made a "fake flash drive" from attiny85. It pretends to be a keyboard (HID) and sends key sequences. But it's funny to build it into such a small case on the lightning cable ;-)