It's so easy to subscribe for paid mobile phone services that you might do it without intending to: it just takes one tap on a button on the service's webpage to sign you up. Yandex.Browser warns you about paid subscriptions so that you only sign up for services you actually want.
Paid subscriptions are one way to pay for internet-based services. Using a paid subscription you can, for example, set up an answering service on your cell phone or sign up for weather forecasts sent by SMS on a weekly basis. To sign up, all you do is follow a link to your mobile service provider's page and click a button to confirm your subscription. Some content providers abuse simple subscription setups and sign users up for services they are unaware they are paying for.
Although mobile subscription pages are hosted on the websites of mobile network operators, their content is determined by outside content providers. Some of them deliberately conceal information about payment for services. For example, the payment button might be labeled Play or Enter and the message informing you that the service is paid may be written in small letters or hidden beyond the visible part of the screen. As the result of clicking just one button on one of these sites, a certain amount of money starts getting charged to your mobile account every day.
It is particularly easy to end up in this position if you get to such a site using a computer rather than a mobile device. This is because it is harder to notice small letters on a bigger screen.
According to Yandex's data, about 20% of users land on pages with a mobile subscription from their computers. One of the reasons for this is the popularity of 3G modems that are often used together with Wi-Fi routers. Additionally, pages containing paid subscriptions may open malicious extensions.
If you end up on a mobile service provider's page that contains a paid subscription, Yandex.Browser will display a warning in the browser window and you'll see the icon on the right side of the SmartBox. Click Proceed only if you really intend to pay for a subscription.
To disable malware protection: