Profit Or Loss [Abstract]

F-Secure Oyj - Filing #3685827

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31
Profit or loss [abstract]
Profit (loss) [abstract]
Revenue	—	146 258 EUR	—	—	—	—	130 371 EUR	—	—	—
Other income	—	751,000 EUR	—	—	—	—	830,000 EUR	—	—	—
Profit (loss) from operating activities	—	38 422 EUR	—	—	—	—	29 497 EUR	—	—	—
Finance income	—	1 714 EUR	—	—	—	—	6 995 EUR	—	—	—
Finance costs	—	13 124 EUR	—	—	—	—	8 815 EUR	—	—	—
Profit (loss) before tax	—	27 011 EUR	—	—	—	—	27 677 EUR	—	—	—
Tax expense (income)	—	5 944 EUR	—	—	—	—	5 316 EUR	—	—	—
Profit (loss)	- EUR	21 067 EUR	- EUR	- EUR	21 067 EUR	- EUR	22 360 EUR	- EUR	22 360 EUR	- EUR
Profit (loss), attributable to [abstract]
Profit (loss), attributable to owners of parent	—	21 067 EUR	—	—	—	—	22 360 EUR	—	—	—
Earnings per share [text block]	—	—	—	—	—	—	—	—	—	—
Earnings per share [abstract]
Earnings per share [line items]
Basic earnings per share [abstract]
Basic earnings (loss) per share	—	12.00	—	—	—	—	13.00	—	—	—