Is Windows Defender enough Internet security?

My question is whether it is safe to do online banking works.

Windows Defender is sufficient for most users that aren't click happy and use an appropriate level of caution. If you keep your browser up to date, Windows up to date and Windows Defender up to date you should be fine.

It's not so much the anti-virus software that makes your computer safe, the biggest share of that falls to the user's shoulders.

Do you make sure to not click on every link you come to?

Do you use ad and javascript blockers in your browser?

Do you fall for scams?

So any software provides a certain level of protection, but nothing is 100%. The user is the biggest security threat to their machine. So maybe your question should be are you practicing safe computer/internet use?

No single product is 100% foolproof and can prevent, detect and remove all threats at any given time and there is no universal "one size fits all" solution.

No amount of security software is going to defend against today's sophisticated malware writers for those who do not practice safe computing and stay informed. It has been proven time and again that the user is a more substantial factor (weakest link) in security than the architecture of the operating system or installed protection software.

• End Users Remain Biggest Security Headache as Compromised Endpoints Increase
• Social Engineering: Attacking the Weakest Link in the Security Chain
• FBI: Internet Social Networking Risks...Humans are a weak link in cyber security

Security is all about layers and not depending on any one solution, technology or approach to protect yourself from cyber-criminals. The most important layer is you...the first and last line of defense. Security begins with personal responsibility and includes a comprehensive approach. Common sense, good security habits, safe surfing, understanding security and safe computing are essential to protecting yourself from malware infection. Thus, a multi-layered defense using an anti-malware and anti-exploit solution to supplement your anti-virus combined with common sense and following Best Practices for Safe Computing provides the most complete protection.

The end user needs to constantly educate about the latest malware threats and those recommendations by security experts on how to protect themselves. If the user is an employee of an organization, that also means following policy and procedures for the use of computer equipment and related resources implemented by the agency IT Department. Knowledge and the ability to use it is the best defensive tool anyone can have

Windows 8/10 Defender is Microsoft's free built-in (integrated) anti-virus and anti-malware solution. Windows 8/10 Defender provides the same level of protection against malware as Microsoft Security Essentials (MSE) provides on older operation systems plus enhanced protection against rootkits and bootkits.

• What's new in Windows Defender for Windows 10 Anniversary Update
• How to Use the Built-in Windows Defender Antivirus on Windows 10
• How to configure Windows Defender in Windows 10