Data watchdogs are warning the public about a Russian-based website that broadcasts feeds from closed-circuit television (CCTV) systems around the world, including baby monitors and webcams.

The site broadcasts footage from thousands of unprotected CCTV cameras without the owner’s knowledge. It includes streams from 250 countries and territories, and include images from offices, bedrooms, driveways, and stores, to name a few examples, according to the BBC.

The site says it has access to 4,591 cameras in the United States, 2,059 in France, 1,576 in the Netherlands, and about 500 in the UK. Visitors can also access CCTV cameras from more remote locations, such as Nicaragua, Pakistan, Kenya, Zimbabwe, and Paraguay.

Not all the feeds showed streaming video from inside a personal space: some simply showed a static image that suggested it might no longer be working. However, the vast number of cameras listed is alarming privacy watchdogs.

They urge the public to set passwords that are hard to guess instead of just leaving them on the default password. Those who own cameras are advised to switch off remote access if they are not using it.

Camera maker Foscam condemned what it termed a gross violation of privacy, noting that it had altered its own software so that customers would have to choose a new password.

“An analogy best describing this would be, just because someone leaves their own window open, it does not give permission for an unauthorized individual to set up a camera outside their window and broadcast the feed worldwide,” Chase Rhymes, the chief operating officer, said in a statement.

UK Information Commissioner Christopher Graham said the feeds, which include footage of children in their bedrooms, were “spooky,” it is the responsibility of the parents to set up good passwords, according to BBC.

He added that UK authorities are working with Russian authorities to shut the website down, which would be illegal in the UK.