Reporting

Users,

Reporting a security breach does not require much of expertise. It is very easy to lookout for a loophole or a vulnerability at a given target to be assessed.
However what signifies the most is the preventive maintenance to be acknowledged and should be carried out immediately. For example the SSH Login attempts.
SSH provides an alternate authentication method which successfully mitigates password guessing attacks. This authentication method is based on cryptographic keys, or so-called private key and public key. The public key is placed onto the server and acts as a custom lock for access to your account. This lock can only be opened with the corresponding private key. Once you provide this key, you gain access.
Password guessing attacks would fail as attackers cannot guess or generate such a private key. All modern SSH servers are configured by default to support this authentication method. However, they usually fail back to password-based authentication in case the incorrect private key is provided, opening the door for password guessing attacks once again. The server needs to instead be configured to accept key-based authentication only for this mitigation strategy to be successful.
The above have been written down from a combined study.
Hope this would shed some light on the Security concerns.

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