The Molly Russell inquest verdict damns Silicon Valley. There can be no more excuses | Peter Wanless and Beeban Kidron

These companies make decisions that harm children. The government must take action

• Sir Peter Wanless is the chief executive of the NSPCC. Lady Beeban Kidron is the founder and chair of 5 Rights

The ruling in a coroner's court in north London on Friday will be felt around the world. The senior coroner, Andrew Walker, concluded that 14-year-old Molly Russell died from an act of self-harm while suffering from depression and the negative effects of online content".

The content, he determined, had contributed to her death in a more than minimal way. This is an immensely significant verdict.