The previous page is sending you to https://m.vk.com/login.php?act=security_check&to=cGFnZS0xNTkxMTUzMTlfNTQwNDA3NTE&al_page=%3D.+&cd=1&hl=en&ct=clnk&gl=bd.

 If you do not want to visit that page, you can return to the previous page.