Information security

The Information Security is not only about securing information from prohibited access. Information Security is mostly the practice of preventing unauthorized access, use, disclosure, disorganization, modification, inspection, recording or destruction of information. Information can be physical or electronic one. Information can be anything like Your details or we can say your profile on social media, your data in mobile phone, your biometrics etc. Thus Information Security spans so many research areas like Cryptography, Mobile Computing, Cyber Forensics, Online Social Media etc. 

During First World War, Multi-tier Categorizing System was developed keeping in mind sensitivity of information. With the beginning of Second World War formal alignment of Classification System was done. Alan Turing was the one who successfully decrypted Enigma Machine which was used by Germans to encrypt warfare data. 

Information Security are build around 3 objectives, commonly known as CIA – Confidentiality, Integrity, Availability.