Saint, I would have had a word with our cybercrime unit, but it sounds like you have started to do some of the things I would suggest.
I wonder how many of the FM's have actually got backups of their important personal data? If not - DO IT NOW !!
I would also suggest that if you are worried about the device you are using has been compromised, log onto your accounts from a clean, known device and make the password changes from there. I always suggest reinstalling or resetting devices on a regular basis, it's like an MOT for your computer/device.