Prevent

Participation in the Prevent strategy is now a statutory duty under the Counter-Terrorism and Security Act 2015 for many public bodies.

Schedule 6 of the Act lists the public authorities that have been given the duty, including schools, hospitals and local authorities.

For schools, the DfE says:

IT policies
The statutory guidance makes clear the need for schools to ensure that children are safe from terrorist and extremist material when accessing the internet in schools. Schools should ensure that suitable filtering is in place.
More generally, schools have an important role to play in equipping children and young people to stay safe online, both in school and outside. Internet safety will usually be integral to a school’s ICT curriculum and can also be embedded in PSHE and SRE. General advice and resources for schools on internet safety are available on the UK Safer Internet Centre website.
As with other online risks of harm, every teacher needs to be aware of the risks posed by the online activity of extremist and terrorist groups.