A password is used to log into an account such as your Youtube or Facebook account. Having a strong password is very important. A weak password can be easier to obtain. A password such as *ocean* can be relatively easy to crack. A password such as *Ju83]@)+17!80l^+<* can be alot harder and take a lot longer to obtain with a good chance of never having success. Dictionary/brute force attacks are programs that generate possible character combinations. This makes obtaining a password such as *ocean* or *forest* relatively easy to obtain.
When creating a password you should use a combination of numbers, letters, and symbols. This makes the possible number of combinations alot higher as apposed to using just numbers or just letters. Use a total of at least 15 characters in your password. Never use any personal information or words from the dictionary. Also make sure you never use the same password on any of your sites. It is a good idea to write down passwords and put them in a place where you can remember them.
Two step verification
Two step verification is a process where after you enter your password a code is sent to your email address or mobile number as a text or a prompt. You then ether accept the prompt or enter the code on the site you are trying to log into. It is probably best to have the code sent to your number since your phone cannot be accessed by anybody else unlike an email address.
Having both a strong password and two step verification enabled will ensure that your account is highly secured. Even though these two important factors will keep your account safe it is always best practice to never click on spam/phishing email, download untrusted software on the internet, or have a computer with software thats out of date or lack of internet security such as no anti-virus. Information stealing malware is somewhat rare on a smartphone but is possible so it doesnt hurt to use anti-virus on a smartphone.
With all the criminal activity on the internet having an account secured such as paypall is one of the most important parts of staying safe.