In the first few hours of searching, the computer program found a number of images previously identified as abusive — and accounts offering to sell more. The Times flagged the posts without viewing any images, sending the web addresses to services run by Microsoft and the Canadian center.
One account in late December offered a discounted “Christmas pack” of photos and videos. That user tweeted a partly obscured image of a child who had been abused from about age 8 through adolescence. Twitter took down the post five days later, but only after the Canadian center sent the company repeated notices.
In all, the computer program found imagery of 10 victims appearing over 150 times across multiple accounts, most recently on Thursday. The accompanying tweets often advertised child rape videos and included links to encrypted platforms.
Alex Stamos, the director of the Stanford Internet Observatory and the former top security executive at Facebook, found the results alarming. “Considering the focus Musk has put on child safety, it is surprising they are not doing the basics,” he said.
Separately, to confirm The Times’s findings, the Canadian center ran a test to determine how often one video series involving known victims appeared on Twitter. Analysts found 31 different videos shared by more than 40 accounts, some of which were retweeted and liked thousands of times. The videos depicted a young teenager who had been extorted online to engage in sexual acts with a prepubescent child over a period of months.
The center also did a broader scan against the most explicit videos in their database. There were more than 260 hits, with more than 174,000 likes and 63,000 retweets