Using a strong password is a good way to protect your YouTube channel and Google account, but it's often not enough. The best way to secure your YouTube and Google account from hackers is to use Google's 2-Step Verification, which utilizes something you know (your password) and something you have (your phone). To login to your account, you'll need to enter both your password and a temporary code that Google sends you via text message or voice call on the phone. I highly recommend you enable 2-Step Verification for your Google account. Here's a step-by-step tutorial on how to enable and setup 2-Step Verification on your Google account and YouTube channel.
I keep copies of all my uploaded videos to YouTube on an external hard drive but most people don't do this. You run the risk of losing all your hard work should YouTube terminate your account. Google Drive makes it easy to backup all the current videos on your YouTube channel. It also makes video management very simple. You can preview your videos within Google Drive or download them at any time.
Keeping your account protected may also require a little common sense on your part. Keep an eye out for phishing emails pretending to be from Google asking for your account info, and if you ever find yourself redirected to a random login page check the URL to make sure it’s not a fake page. Two-step verification will protect you from these types of scams most of the time, but you should still try to avoid them.
If you post videos to YouTube, there’s a lot to worry about: notably, privacy-invading content in your videos. Make sure you don’t inadvertently include any information or pictures you don’t want made public, such as the number on your house or your car’s license plate. Pay close attention to backgrounds because that’s where personal images might slip through.