06:15 AM EDT, 06/06/2025 (MT Newswires) -- Amazon.com ( AMZN ) has vowed to "enhance" its systems to tackle fake reviews on its online marketplace, the UK Competition and Markets Authority said Friday.

The e-commerce giant's undertakings tackle the competition watchdog's concerns regarding "catalogue abuse," the CMA said. "This is where sellers hijack the reviews of well-performing products and add them to an entirely separate and different product, in order to falsely boost its star rating -- and mislead consumers."

The CMA said that the company has also agreed to sanction businesses that enhance their star ratings through bogus reviews or catalogue abuse, including bans from selling on the website. Users that post fake reviews could be banned from giving reviews altogether, the CMA said.

"We invest significant resources to proactively stop fake reviews ever appearing on our store, including on expert human investigators and machine learning models that analyze thousands of data points to detect risk," an Amazon ( AMZN ) spokesperson said in a statement e-mailed to MT Newswires.

The company also suspends, bans and takes legal measures against policy violators and has teams in place that take action against "bad actors that attempt to solicit fake reviews for products," the spokesperson said.