Which method is commonly used to protect against unauthorized access?

Using stronger passwords is a widely accepted method for safeguarding against unauthorized access to systems and accounts. Strong passwords typically involve a combination of upper and lower case letters, numbers, and special characters, making them difficult for attackers to guess or crack through brute-force methods. Additionally, employing unique passwords for different accounts further increases security by ensuring that if one password is compromised, others remain protected. This practice helps users defend against common threats such as password guessing, phishing attacks, and other forms of unauthorized entry, contributing positively to overall data security. In contrast, the other methods mentioned do not enhance security and may even expose systems to risks. For example, limiting software updates can leave vulnerabilities unaddressed, reducing overall system security.