Information security is the process of ensuring that information is kept safe from unauthorized access, use, or disclosure. It’s a vital part of any organization’s infrastructure that deals with sensitive data. It’s also a key service for individuals who want to protect their personal information. It is the act of protecting data and information. It’s a broad term that can encompass anything from encrypting a file to protecting your personal information online.

Read more on Information Security Vs Cyber Security.

Information Security Definition

Information security is the practice of protecting information in order to prevent unauthorized access, use, and disclosure. It involves implementing policies and procedures that are designed to safeguard information and help prevent data loss or theft.

Information security is the protection of data and information from unauthorized access, use, disclosure, disruption, modification or destruction.

Information security is a major concern for individuals and organizations. The amount of sensitive data that needs to be protected has increased dramatically in recent years. This can include personal information such as social security numbers, medical information and financial data.

In addition to protecting this kind of data, organizations also need to protect proprietary information such as trade secrets, financial information and new product development plans.

An Information security policy is important because it protects your privacy, which is valuable in and of itself. But in today’s world, it also protects things like your finances, your relationships with friends and family members—even your ability to get a job or rent an apartment!

Why is information security important?

Information security is important because it helps you protect your data, which is valuable and sensitive. There are many ways you can protect your data, such as encrypting it or storing it in a secure location. It can help you to protect your personal information, and keep your data safe.

For example, if someone steals your credit card number or other financial information, they can use that information to make purchases on your behalf. If they use the money to buy something expensive such as a car or house, then it may take you years to pay back what’s owed on those purchases with interest added in. This might affect your credit score and ability to get loans in the future!

Another reason why information security is important is because it helps prevent hackers from accessing your accounts online so that no one else can see what you’re doing online. This can include things like checking email or banking online—you don’t want anyone else snooping into those things! 

Lastly (and most importantly), information security can keep us safe from identity theft. Identity theft happens when someone steals another person’s identity by pretending they’re them online—this could mean stealing their credit card number or other personal information so they can make purchases under their name without authorization!

How does information security help you?

In order for information security to help you, you need to have something that needs protecting. If you have personal information about others or company secrets, then this is something that will benefit from being protected.

Which types of information are worth protecting?

Information is power.

If you have information that could be used to manipulate other people, then it’s worth protecting. But how do you know what information is worth protecting?

The first step is to identify the type of information that’s being shared. There are two main types: private and public. Private information includes the following:

  • Financial records
  • Employee or customer data
  • Your computer systems and databases (e.g., preventing ransomware attacks)
  • Your employees’ email accounts (e.g., stopping phishing attempts)
  • Your company’s intellectual property (e.g., ensuring that employees don’t leak trade secrets)
  • Public information includes the following:
  • News about a company or organization
  • Information about products or services (including pricing)
  • Corporate credentials 
  • Banking information
  • Passwords

How to secure your information? : Methods for Information Security

Data Encryption

Data encryption is a process of encoding or scrambling data so that it is unreadable to anyone who does not have the key to decrypt it. Data encryption provides confidentiality and integrity, and sometimes authentication, by transforming data into an unreadable format.

The most common use for data encryption is for the protection of sensitive information against unauthorized access or modification.

Data encryption can be used to protect any kind of data and for any purpose. However, the most common applications are: confidentiality (hiding content), integrity (protecting against modification), authentication (establishing identity), non-repudiation (preventing repudiation / proving authenticity). 

Email Authentication

Email authentication is a process that confirms the authenticity of an email message. It’s a safeguard against phishing and spoofing, in which criminals impersonate companies or individuals to trick people into clicking links and giving up their personal information.

Email authentication makes use of DomainKeys Identified Mail (DKIM) and/or Sender Policy Framework (SPF). These protocols allow a domain owner to add a digital signature to an email message so that recipients can verify that the message comes from an authorized source. 

Finally, you can use DMARC to tell your email provider what to do when they receive emails from other domains that don’t meet your standards for authenticity or legitimacy. For example, if some spammer starts sending emails from your domain name without your permission, you can use DMARC to tell your provider not to accept them as legitimate emails coming from your domain.

Cyber Insurance

Cyber insurance is a type of insurance that covers businesses that have been the victim of a cyber-attack. Cyber insurance is usually purchased as an add-on to general business insurance policies and covers losses caused by hacking, malware, ransomware and other forms of cyber crime. The policy will also cover any third-party losses arising from these events, such as the cost of investigating the incident and restoring systems back to normal operation.

Read more on Cyber insurance and DMARC.


A firewall is a security software that protects your computer from external attacks. It can be a hardware or software device, or it can be built into your computer’s operating system.

A firewall stops malicious content from entering your computer through the internet. This includes viruses, malware, and other harmful programs. A firewall also prevents unauthorized access to your computer from outside sources by blocking incoming requests to access your files or data.

Packet Filtering

Packet filtering is a method of network security in which the incoming and outgoing packets are analyzed and allowed or denied based on criteria. One of the most important factors to consider when implementing packet filtering is the location of the filter. 

If your packet filter is placed at a gateway, it will prevent traffic from entering or exiting your network through that specific point. If you have multiple gateways in your environment, you can set up different packet filters for each gateway to ensure that only the appropriate traffic is allowed through.