𐑢𐑧𐑯 𐑿 𐑤𐑪𐑜 𐑦𐑯𐑑𐑵 ·𐑜𐑵𐑜𐑩𐑤 𐑪𐑯 𐑩 𐑥𐑿 𐑛𐑦𐑝𐑲𐑕, 𐑦𐑑 𐑕𐑧𐑯𐑛𐑟 𐑩 𐑯𐑴𐑑𐑦𐑓𐑦𐑒𐑱𐑖𐑩𐑯 𐑑 𐑘𐑹 𐑿𐑑𐑵𐑚 𐑨𐑐 𐑪𐑯 𐑘𐑹 𐑓𐑴𐑯. 𐑿 𐑣𐑨𐑝 𐑑 𐑩𐑒𐑕𐑧𐑐𐑑 𐑹 𐑛𐑦𐑒𐑤𐑲𐑯 𐑞 𐑥𐑿 𐑤𐑪𐑜𐑦𐑯 𐑞𐑺.

When you log into Google on a new device, it sends a notification to your youtube app on your phone. You have to accept or decline the new login there.