Büntető Törvénykönyv (Criminal Code), Sections 423-424, Violation of Information Systems or Data
2012. évi C. törvény (Btk.), 423-424. § (Információs rendszer vagy adat megsértése)
A citation is an address, not a summary. The first part names the law; what follows narrows it to the exact section, article or paragraph.
In force.
A computer misuse rule binding public and private bodies.
As of 6 September 2026.
What it requires
- Do not log into, or remain logged into, an information system by violating or circumventing a technical measure safeguarding it; unauthorized access is a criminal offense under Btk. Section 423(1) regardless of whether any data is altered.
- Do not hinder an information system's operation, or modify, delete, or render inaccessible data stored in it, without authorization; Btk. Section 423(2) makes this a felony independent of Section 423(1)'s access offense.
If you get it wrong
Criminal exposureYes
Criminal exposure note
Section 423(1) carries up to two years' imprisonment for unauthorized access or overstaying authorized access; Section 423(2) carries up to three years for unauthorized interference with an information system's functioning or its data; Section 423(3) raises this to one to five years where a significant number of systems are affected or significant harm to interests results; Section 423(4) raises it to two to eight years where the offense is committed against a public-interest facility. Section 424(1) separately punishes, by up to two years, making, handing over, or acquiring a password or program built to facilitate an offense under Section 375, 422(1)(d), or 423.
What it reaches
Obligation class
Access restriction
What this law does
Drafted with AI from the cited sources under the direction of UnGovr staff. UnGovr holds editorial responsibility for this page.
Section 423(1) makes it a misdemeanour, punishable by up to two years' imprisonment, to log into an information system without authorization by violating or circumventing a technical access-control measure, or to stay logged in beyond one's authorization.
Section 423(2) makes it a felony, punishable by up to three years, to hinder an information system's functioning or to modify, delete, or render data inaccessible without authorization, with Section 423(3)-(4) raising the term to one to five years where a significant number of systems are affected or significant harm results, and to two to eight years where the target is a public-interest facility.
Section 424 separately criminalizes making, handing over, or acquiring a password or program built to facilitate one of these offenses. Section 423's current text derives from Act LXXII of 2014, Section 86, per the Hungarian-language consolidated text's own footnote apparatus, with no later repeal noted.
When LexLint raises it
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