Notes And Other Explanatory Information [Abstract]

F-Secure Oyj - Filing #3685819

Concept	2024-01-01 to 2024-12-31
Notes and other explanatory information [abstract]
Disclosure of accounting judgements and estimates [text block]	Management judgment on significant accounting principles and use of estimates
Disclosure of accrued expenses and other liabilities [text block]
Disclosure of allowance for credit losses [text block]	Aging of trade receivables and expected credit losses
Disclosure of auditors' remuneration [text block]
Disclosure of authorisation of financial statements [text block]	A copy of consolidated financial statements can be downloaded on www.f-secure.com or can be received from the parent company’s registered address. These financial statements were authorized for issue by the Board of Directors on 25 February 2025.
Disclosure of basis of preparation of financial statements [text block]	1
Disclosure of business combinations [text block]
Disclosure of cash and cash equivalents [text block]
Disclosure of collateral [text block]	Note 5 Leases
Disclosure of commitments and contingent liabilities [text block]
Disclosure of credit risk [text block]	Credit risk
Disclosure of derivative financial instruments [text block]	F-Secure has no outstanding derivative contracts on 31 December 2024.
Disclosure of dividends [text block]	Dividends proposed and paid
Disclosure of earnings per share [text block]
Disclosure of effect of changes in foreign exchange rates [text block]	Transaction risk
Disclosure of employee benefits [text block]
Disclosure of entity's operating segments [text block]
Disclosure of events after reporting period [text block]
Disclosure of financial risk management [text block]
Disclosure of general information about financial statements [text block]	Consolidation principles
Disclosure of going concern [text block]	The consolidated financial statements have been prepared on a going concern basis and management has not recognized any material uncertainties related to continuity of operations.
Disclosure of goodwill [text block]
Disclosure of income tax [text block]
Disclosure of information about employees [text block]
Disclosure of interest income (expense) [text block]
Disclosure of inventories [text block]
Disclosure of leases [text block]	5
Disclosure of liquidity risk [text block]	Liquidity risk
Disclosure of loans and advances to banks [text block]
Disclosure of objectives, policies and processes for managing capital [text block]	Capital management
Disclosure of other operating income (expense) [text block]
Disclosure of prepayments and other assets [text block]
Disclosure of profit (loss) from operating activities [text block]	Operating result
Disclosure of property, plant and equipment [text block]
Disclosure of provisions [text block]	Provisions
Disclosure of related party [text block]
Disclosure of research and development expense [text block]
Disclosure of revenue [text block]
Disclosure of revenue from contracts with customers [text block]	Assets and liabilities from contracts with customers
Disclosure of share capital, reserves and other equity interest [text block]
Disclosure of share-based payment arrangements [text block]
Disclosure of subsidiaries [text block]
Disclosure of tax receivables and payables [text block]
Disclosure of trade and other payables [text block]
Disclosure of trade and other receivables [text block]
Disclosure of treasury shares [text block]	Treasury shares