Microsoft has introduced autogenerated image extensions. If you don’t upload your own image extensions in Microsoft Advertising, stock images could be automatically inserted.
This feature is already being rolled out, but it’s not yet available to all advertisers.
Auto-selected images may not align with your brand and can even appear inappropriate. To maintain control over your advertising, ensure you manually add your chosen image extensions to each ad group in your account.
This news was highlighted by Scott Carruthers.