Online Safety Act 2023 (c. 50) – Section 27 – Safety duties about illegal content
Sections
Section 27Safety duties about illegal content
(1) This section sets out the duties about illegal content which apply in relation to regulated search services (as indicated by the headings).
All services
(2) A duty, in relation to a service, to take or use proportionate measures relating to the design or operation of the service to effectively mitigate and manage the risks of harm to individuals, as identified in the most recent illegal content risk assessment of the service (see section 26(5)(c)).
(3) A duty to operate a service using proportionate systems and processes designed to minimise the risk of individuals encountering search content of the following kinds—
- (a)priority illegal content;
- (b)other illegal content that the provider knows about (having been alerted to it by another person or become aware of it in any other way).
(3A) [F1 A duty to operate a service using proportionate systems and processes designed to ensure that individuals are no longer able to encounter—
- (a)search content in relation to which an intimate image content report is made to the provider (see section 31A(2)), and
- (b)any other search content identified by the provider as the same, or substantially the same, as that content,
as soon as reasonably practicable, and no later than 48 hours, after the provider receives the report (unless subsection (3B) applies).
(3B) This subsection applies if the provider considers that—
- (a)the search content is not intimate image content, or
- (b)the person making the report is not—
- (i)the subject of the content, or
- (ii)a person acting on that person’s behalf.]
- (i)
(4) The duties set out in subsections (2) [F2to (3A)] apply across all areas of a service, including the way the search engine is designed, operated and used as well as search content of the service, and (among other things) require the provider of a service to take or use measures in the following areas, if it is proportionate to do so—
- (a)regulatory compliance and risk management arrangements,
- (b)design of functionalities, algorithms and other features relating to the search engine,
- (c)functionalities allowing users to control the content they encounter in search results,
- (d)content prioritisation,
- (e)user support measures, and
- (f)staff policies and practices.
(5) A duty to include provisions in a publicly available statement specifying how individuals are to be protected from search content that is illegal content.
(6) A duty to apply the provisions of the statement referred to in subsection (5) consistently.
(7) A duty to include provisions in a publicly available statement giving information about any proactive technology used by a service for the purpose of compliance with a duty set out in [F3subsections (2) to (3A)] (including the kind of technology, when it is used, and how it works).
(8) A duty to ensure that the provisions of the publicly available statement referred to in subsections (5) and (7) are clear and accessible.
Additional duty for Category 2A services
(9) A duty to summarise in a publicly available statement the findings of the most recent illegal content risk assessment of a service (including as to levels of risk and as to nature, and severity, of potential harm to individuals).
Interpretation
(10) In determining what is proportionate for the purposes of this section, the following factors, in particular, are relevant—
- (a)all the findings of the most recent illegal content risk assessment (including as to levels of risk and as to nature, and severity, of potential harm to individuals), and
- (b)the size and capacity of the provider of a service.
(11) In this section “illegal content risk assessment” has the meaning given by section 26.
(12) See also, in relation to duties set out in this section, section 33 (duties about freedom of expression and privacy).
Amended text
This Section is shown as amended by Crime and Policing Act 2026 (see the annotations below), as incorporated in the text in force on 19 September 2026 as published on legislation.gov.uk.
Annotations
Textual Amendments
- F1 S. 27(3A)(3B) inserted (29.6.2026) by Crime and Policing Act 2026 (c. 20), ss. 100(5), 255(1); S.I. 2026/689, reg. 2(1)(j)
- F2 Words in s. 27(4) substituted (29.6.2026) by Crime and Policing Act 2026 (c. 20), ss. 101(4)(a), 255(1); S.I. 2026/689, reg. 2(1)(j)
- F3 Words in s. 27(7) substituted (29.6.2026) by Crime and Policing Act 2026 (c. 20), ss. 101(4)(b), 255(1); S.I. 2026/689, reg. 2(1)(j)
Commencement Information
- I1 S. 27 not in force at Royal Assent, see s. 240(1)
- I2 S. 27 in force at 10.1.2024 by S.I. 2023/1420, reg. 2(j)
https://osa.digiphile.law/article/article-27.html
Text as at 19 September 2026.
This is an unofficial convenience version of the Online Safety Act 2023. It is presented “as is” without guarantee of accuracy, completeness or reliability. See the source text for the official version. This site was last updated in September 2026.