Suppose someone tries to access a protected resource through an unsecured HTTP protocol with the basic auth.
You caught the request and extracted the string which should contain the login and password.
SV9hZG1pcmU6eW91cl9za2lsbHM=Enter a valid login and password for this user. They must be separated by the symbol :.
Tip: To solve this problem, find the base64 online encoder/decoder on the Internet.