Someone MAY be able to crack your password. I would not be concerned if you had a strong passcode. It is recommended that you use at least 5 numbers (recently added ability to use 5 instead of 4).
Better yet is to use a complex password that uses alphanumeric characters instead of just numbers.
I would
lost/stolen
No app on the iOS device is required.
- If you previously turned on FIndMyiPod/iPhone/iPad on the iOS device in Settings>iCloud and wifi is on and connected or cellular data is on and connected for, on a computer browser go to iCloud: Find My iPhone, sign in and go to FIndMyiPhone. If the iPod has been restored it will never show up or continue to show off-line.
- You can also wipe/erase the iOS device and have the device play a sound via iCloud.
iCloud: Erase your device
iCloud: Use Lost Mode
- If not shown, then you will have to use the old fashioned way, like if you lost a wallet or purse.
- Change the passwords for all accounts used on the device and report to police and carrier if iPhone or cellular iPad
- There is no way to prevent someone from restoring the erase (it erases it) using it unless you had iOS 7 or later on the device. With iOS 7 or later, one has to enter the Apple ID and password to restore the device.
- Apple will do nothing without a court order
Reporting a lost or stolen Apple product
- iOS: How to find the serial number, IMEI, MEID, CDN, and ICCID number
In your case consider the Erase option but that only works if the iPod connects to the internet which is not likely