After check-in, a security control is always carried out on all passengers and carry-on items. All luggage transported in the cargo hold is subject to security control at check-in.
Always make sure that your luggage does not contain any prohibited items or substances. For more information, see:
Finavia provides detailed information about what to think about before going through the security control, including getting ready for the control, what will happen if you set off the metal detector, and what happens to confiscated items: