Starting today, more than 100,000 online services, including social media and gaming platforms, search engines, and pornography sites, are now required by the Online Safety Act to tackle criminal activity on their platforms, or risk facing significant fines. Action against “illegal harms” — which includes terrorism, hate, fraud, child sexual abuse, and assisting or encouraging suicide — are the first enforceable rules under the legislation, which could also notably be used to weaken global data encryption.