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SIM Swap Guidance

This guide explains how criminals can hijack your mobile phone number by tricking your provider into switching your service to a SIM card under their control. Once they have your number, they can intercept calls and texts – including the one‑time passwords used by banks and other services – and potentially access your accounts.

It also outlines key warning signs and provides practical steps you can take – like contacting your network operator immediately if things look strange, tightening account security and being careful about what personal details you share online.

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Early Warning Service

The NCSC provides a free service to organisations to inform them of threats against their network. This service will notify you on all cyber attacks detected by the feed suppliers against your organisation and is designed to compliment your existing […]

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