Children usually do not tell straight away. An adult’s job is not to monitor every click, but to be the person a child can come to without fear of punishment.
Signs to watch for
A change in behaviour is the most reliable signal — particularly when it is tied to the phone, to school or to friends.
A sudden change in how they treat the phone (hiding it, or checking it in a panic)
Avoiding school, falling grades
Withdrawal, changes in sleep and appetite
Losing friends, deleting profiles
How to start the conversation
The first conversation should not be an interrogation. The aim is that the child does not regret speaking up. Do not take the phone away as your first response — to a child that reads as punishment for telling, and it usually buys silence.
Start from what you have noticed, not from “what did you do”
Do not promise secrecy you cannot keep, but explain every step
Save the evidence together before blocking anyone
Do not contact the other child or their parents yourself — that goes through the school
The formal steps
By law a school is obliged to act on a report of violence and to keep a record of it. Insist on a written report and ask to be told what measures were taken.
Report it to the form teacher and to the violence protection team, in writing
For threats and intimate content — report to the police (122)
Ask the school counselling service for support
Report through this platform too, so the case can be followed
What you can do now
Listen without accusing and without taking the phone away.