In this week's Really Useful Podcast, we reveal the threat of SIM card swapping, and whether your phone is secretly spying on you. There's also a look at sleep monitoring apps, the Firefox browser's new sync tool, and find out how to download videos from Facebook to your PC or phone.Really Useful Podcast Season 2 Episode 4 ShownotesSIM card swappingDownload videos from FacebookIs your smartphone listening to you?Eversleep review and giveawayEscape from Google and use Firefox to sync your browsing dataYour hosts this week are Christian Cawley and James Frew. You can follow them both on Twitter:@thegadgetmonkey@jimjamfrooOnce again, we urge you to share The Really Useful Podcast with anyone you know who would benefit from our straight, no-nonsense approach to using technology. The tech podcast for technophobes will be back next week!