Sarvajanik college of engineering and technology. Created by:- Keshvi Khambhati (co-m) Ria Bhatia (co-m) Meghavi Gandhi (co-m) Jarul Mehta(co-m) Topic :- security and information assurance.. Submitted to:- bhaumik sir ( BE )

What is security and information assurance??? Information security is as computer security which is applied to computers and computer networks..... Information security is as computer security which is applied to computers and computer networks..... Security and information assurance is the practice of assuring information and managing risks related to the use, processing,storage, and transmission of information or data and the systems and processes used for those purposes. It includes protection of integrity, authenticity,confidentiality of user data... Security and information assurance is the practice of assuring information and managing risks related to the use, processing,storage, and transmission of information or data and the systems and processes used for those purposes. It includes protection of integrity, authenticity,confidentiality of user data...

Areas where it is used!!!!!! Computer science Computer science Business and accounting Business and accounting Forensic science Forensic science Fraud examination Fraud examination

Areas where it is used!!!!!! It is also used in the fields of criminology, security engineering, disaster recovery, management science, import-export of goods..... It is also used in the fields of criminology, security engineering, disaster recovery, management science, import-export of goods.....

Brief introduction about data protection... Data protection is legal control over access to and use of data stored in computers...

Classification of data protection By making some changes in default information..

Methods for data protection….  Certain methods used for authentication of the person(user) operating the computer….  Facial recognition:- it measures distances between specific points on the face.  Finger prints :- measure distance between specific points on a fingerprint.  Hand geometry:- measures length of fingers and length ad width of hand.  Iris :-measures the colour and pattern of the iris in the eye.  And some other methods are by analyzing the signature,voice, retina,keystrokes, hand vein etc.

How to protect your data???.. 1. Back up early and often. 2.Use file-level and share-level security. 3.Password-protect documents. 4.Make use of public key infrastructure. 5.Secure wireless transmission. 6.Protect data with transit with IP security.

Security analysis... Security analysis in computer is the field that covers all the process and mechanisms by which computer based equipment,information and services are protected from unintended or unauthorized access, change or destruction... Security analysis in computer is also known as cybersecurity or IT security

People/Organization Technologies Processes Policies Secured Infrastructure Security Challenges?

Security Requirements Authentication Authentication Availability Availability Auditing Auditing Authorization Authorization Privacy/Confidentiality Privacy/Confidentiality Integrity Integrity Non-repudiation Non-repudiation

Security Domains Application/System Security Operations Security Telecommunication & Network Security Physical Security Cryptography Security Architecture Security Management Access Control Law, Investigations, and Ethics Business Continuation & Disaster Recovery Planning Ten Security Domains

CIA Triad of security analysis(IS) SECURITY ANALYSIS ENSURING THAT DATA CAN BE MODIFIED ONLY BY APPROPRIATE MECHANISMS THE DEGREE TO WHICH AUTHORIZED USERS CAN ACCESS INFORMATION FOR LEGITIMATE PURPOSSES ENSURING THAT DATA IS PROTECTED FROM UNAUTHORIZED ACCESS INTIGRITY AVAILABILITY CONFIDENTIALITY

PREVENTING UNAUTHORIZED ACCESS GUIDELINES FOR PASSWORDS: Easy to remember, hard to guess Don't use family or pet names Don't make it accessible Use combination uppercase/lowercase letters, digits and special characters Don't leave computer when logged in Don't include in an Don't use the same passwords in lots of places

Secure software engineering  Secure software engineering is a process that helps design and implement software that protect the data and resources contained in and controlled by that software.

Cybercrime Evolution  LANs  First PC virus  Motivation : damage  Internet Era.  “big worms”  Motivation to Damage  Targeted attacks  Social engineering  Financial+ political  OS, DB attacks  spyware,spam  Motivation: financial

MICROSOFT SDL AND WINDOWS Total vulnerabilities disclosed one year after release Before SDL after SDL 45% reduction in vulnerabilities

Microsoft SDL and SQL server Total vulnerabilities disclosed 36 months after release Before SDL after SDL 91% reduction in vulnerabilities

Infrastructure security  Infrastructure security means it includes how to address security issues across an IT enviorment to ensure each device is protected from malicious activity…

Firewall

Infrastructure security:- Firewall  Firewall :- Firewall provides an effective means of protection of a local system or network of systems from network – based security threats while affording access to the outside world via LAN’s and internet.

Firewall:- Design principles  Firewall is inserted between the premises network and internet.  Aims of firewall design 1. To establish a controlled link. 2.To protect the premises network from internet – based attacks.. 3.Provide a single point of contact between your secure internal network and untrusted network.

Firewall:- Design goals Only authorized traffic should be allowed to pass… Firewall is itself immune to penetration.(use of trusted system with a secure operating system) All traffic from inside to outside should pass through firewall.

Types of Firewalls

 Application layer filtering:-  It deals with the details of particular service they are checking.  Special purpose code needed for each application.  Easy to log all incoming and outgoing traffic.  is generally passed through an application- level filter.

Infrastructure security:-Antivirus  Antivirus software is a computer program that detects, prevents, and takes action to disarm or remove malicious software programs, such as viruses and worms. You can help protect your computer against viruses by using antivirus software.

How does antivirus works???  Most antivirus software will offer to delete or contain (quarantine) the malicious code. Remember, the antivirus program runs in the random access memory (RAM or memory) of a computer. All communication from that computer through TCP/IP is programmed to be monitored by the antivirus software, thus when malicious code is detected it is stopped before it can damage the computer. Viruses have patterns that are matched by the antivirus software within these communication layers. Most viruses do have patterns, but some don't. That is when the intelligent engine in the antivirus software takes over.

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