I recently found out that after the update to nougat, the phone doesn't lock properly after pushing the power button. Now it can be unlocked just by clicking on the power button to activate the screen and swapping on the lock screen. Nor the pin or fingerprint is required. The lock 🔒 icon shows 🔓 (open) when the screen is activated. That is a very serious problem because now the fingerprint scanner is useless! Even the security pin is useless! Anyone can unlock my phone just by activating the screen and swapping!