Hot answers tagged security
You can't be 100% sure unless you do it yourself (with an Apple provided DVD or DMG).
I've always wondered the same thing: how to keep OS X from storing the WPA passphrase (or PSK) in NVRAM. Using 'nvram' I could never find the variable that I thought held these credentials. Today, I tried booting to a USB live image of Linux and running Chipsec. Its command to list EFI variables has many more results than I was getting by running nvram ...
There is no security risk. That is only audio and no data access is possible. But there maybe some health concerns if using previously used earphone that are not sterilized. Whipping them with a germs killer wet-tissue or alcohol should do it.
The firmware password on newer machines isn't stored in nvram anymore (which is why anything newer than around 2010/2011 cannot have the firmware password removed by reseating RAM). Source: https://github.com/munkireport/munkireport-php/issues/43#issuecomment-29738033
See my answer here: Since the release of 10.10.4, Apple now provides a new tool called trimforce, allowing users to activate TRIM also on unsupported disks. So now you can do: sudo trimforce enable
There is some literature out there for you (e.g.here or here). Basically there is different means of protection. Locating the device (Find my Mac) Surveillance apps (also have a look at the OS X Back to my mac, which reportedly freed some Macs from their thieves) Data security / encryption (e.g. Filevault2 encryption, Firmware password) Physical ...
If moving to Android is an option, then you clearly don't need anything that's in the account. So just create a new one and link your device to that account instead. And when you do create a new account, be sure to link a mobile phone number and another email address to it, so that the same thing can't happen again.
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