The letter coincides with new data from the IWF which shows that in 2024, the IWF acted to remove images or videos of children suffering sexual abuse, or links to that content, on 291,270 webpages.
Each page can contain at least one, if not hundreds or thousands, of images and videos.
This is the most child sexual abuse webpages the IWF has ever discovered in its 29-year history and is a five per cent increase on the 275,650 webpages identified in 2023.
In 2014, the IWF began to proactively seek out and remove child sexual abuse imagery from the internet having been granted new powers by Sir Keir in his role as Director of Public Prosecutions.
Before then, the IWF could only legally respond to reports made by the public, tech companies or the police.
The powers granted by Sir Keir had a dramatic effect on the amount of child sexual abuse material the IWF was able to uncover, with 2024’s figures showing an 830 per cent increase on the 31,260 webpages found when proactive detection began.
Derek Ray-Hill, Interim Chief Executive of the IWF, said the Prime Minister has shown a strong commitment to children’s online safety, and urged him to go further now in light of the escalating threat.
He said: “Ten years ago Keir Starmer, as Director of Public Prosecutions, took a stand, giving the IWF unprecedented powers to proactively hunt down child sexual abuse imagery online. Now, we need him to act decisively again. The new regulations we’ve all worked so hard to bring in threaten to leave gaping loopholes for criminals to exploit.
“The Online Safety Act can be revolutionary in protecting our children if the political and regulatory will is there. Or it can be a monument to ineffectiveness in the face of a solvable problem. The solutions are here, now. They aren’t pie-in-the-sky solutions for the future. They exist, and they are trusted. Big tech just needs to be instructed to switch them on.
“Sir Keir has it in his gift to take the wheel and make a real difference that children in the UK, and all around the world, will benefit from. It’s their safety that is at stake.”