Improving IoT security

Now, let's analyze some additional mechanisms and best practices that you can apply to improve the security of IoT devices.

Default passwords

Change all the default passwords of all IoT devices upon installation.

Also, make sure you select very strong passwords for those devices, consisting of the following properties:

• 15 characters long.
• Letters (lower and upper case), numbers, and special characters.
• Avoid the use of common words (also known as dictionary words) like names of countries, months of the year, and so on.
• Change it at least twice a year for home devices and quarterly for business devices.
• Use a password manager for secure and easy management of these passwords.

However, using a super password is not enough. You should also obfuscate the username to make things even harder for the attacker. Let's do this by changing the default user.

Default users

Default users like Admin are easy to guess for...