A minority of laptops are thinkpads, a fraction of those have SIM cards, and, finally, attacking that subsystem requires serious skills and the benefits are dubious.

Compare that with android/ios phones, which 99% of people have, and have a large underground market of backdoors that anybody can buy and install. Not to mention all the spyware that users and OEM install.

Here are some questions I don't have the answer to, but would be relevant:

- Are these SIMs always active?

- Do they communicate broadly with the internet, or just specific servers?

- If they communicate with specific servers, where does an attacker have to be exploit these communications?

- Does this technology allow for the arbitrary execution of code, or can it only wipe the hard drive?

There are probably more contraints here, but the basic point I'm driving at is that the challenge here is not equivalent to the challenge of exploiting an old android or iOS device. Is there some risk, yes, but it really doesn't seem to be the same amount of risk.