Instagram has made some widespread platform changes to make things safer for teen users.
Accounts made by under-18s will be made private by default and notifications won't appear from 10pm to 7am.
Instagram is also introducing more adult supervision tools - including letting parents see accounts their teen has recently messaged.
Netsafe Chief Online Safety officer Sean Lyons says it's a good step.
"It doesn't fix all the problems, but what I think we're starting to see is movement towards giving more protection by default to young people."
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