What is a security policy?

A security policy is an official set of rules and requirements that defines exactly how security must be ensured in an organization or system.

In simple terms: a security policy answers the question of what is allowed, what is not, and who is responsible for what in the area of security.

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#Why a security policy is needed

Without a security policy:

• everyone understands security their own way;
• rules are applied inconsistently;
• it is hard to control and penalize violations.

A security policy is needed to:

• establish uniform rules;
• reduce the risk of leaks and attacks;
• comply with the requirements of standards and laws;
• simplify security control and audits.

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#What a security policy usually describes

#1. Access rules

• who has access to which systems;
• how rights are granted and revoked;
• password and account requirements.

Example: the password must be at least 12 characters, MFA is mandatory.

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#2. Use of resources

• whether personal devices may be connected;
• whether installing software is allowed;
• rules for using the internet and email.

Example: using USB drives without approval is prohibited.

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#3. Data protection

• what data is considered confidential;
• how it should be stored and transmitted;
• whether encryption is required.

Example: personal data is transmitted only over secure channels.

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#4. Incident response

• what to do in case of a breach or leak;
• who to notify;
• what steps to take.

Example: in the event of a security incident, an employee must immediately notify the IT department.

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#5. Responsibility

• who is responsible for security;
• the consequences of violating the rules.

Example: violating the policy can lead to disciplinary action.

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#Types of security policy (briefly)

• Organizational - general rules for the company
• Network - network protection rules (firewall, VPN, segmentation)
• Access policy - who can go where
• Password policy - password requirements
• Incident policy - how to respond to attacks

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#Important to understand

• A security policy is not technology, it is a document and a set of rules
• Technical tools (firewall, IDS, VPN) implement the policy's requirements
• The policy is mandatory for all employees

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#Short answer for the interview

Ready-made wording:

A security policy is a formal document that defines the rules, requirements and responsibilities for ensuring information and network security in an organization.