A collection of articles covering essential cloud security topics and best practices.
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the pillar of cybersecurity that consists of three essential elements crucial to the operation of a business...
Confidentiality: It ensures that sensitive information is kept private and accessible only to authorized individuals or systems. This involves controlling access to prevent unauthorized disclosure, whether accidental or intentional. Effective confidentiality measures ensure that necessary personnel have the right access, while others are restricted.
Breaches of confidentiality can occur through direct attacks like man-in-the-middle (MITM) attacks, network spying, or privilege escalation. Additionally, human error, such as sharing passwords or failing to encrypt data, can lead to unintentional violations. To protect confidentiality, organizations can implement access control policies, encryption (e.g., AES, DES), VPNs, multi-factor authentication (MFA), and user training (MOST IMPORTANT). These measures reduce the risk of unauthorized access and ensure that sensitive data remains secure.
Integrity: ensures that data remains accurate, authentic, and free from unauthorized modifications. Reliable data builds trust, while tampering or corruption can harm an organization's reputation and operations. For example, altering executive details on a company website can damage credibility. Data integrity can be compromised intentionally through hacking, bypassing security systems, or altering logs, or unintentionally through human error or inadequate security measures.
To safeguard data integrity, organizations use hashing (e.g., SHA, MD5), encryption, digital signatures, and certificates from trusted authorities. Non-repudiation techniques, such as digital signatures, ensure that the origin and receipt of data cannot be denied. Comparing hash values before and after data transfer also verifies that the data has not been altered during transmission.
Availability: ensures that systems, networks, and data are accessible when needed by authorized users. Reliable access is essential for both internal operations and customer services. Delays or disruptions can hinder productivity and impact business continuity.
Threats to availability include power outages, natural disasters, and cyberattacks like denial-of-service (DoS) and ransomware. A lack of disaster recovery plans or fail over systems can prolong downtime. To maintain availability, organizations implement redundant systems, regular maintenance, software updates, and network monitoring. Disaster recovery plans and data backups further enhance resilience, ensuring operations can resume quickly after disruptions. Proactive measures prevent bottlenecks and minimize the risk of unavailability.
Protecting data integrity and confidentiality...
Encryption transforms data into ciphertext, making it unreadable without a key. Hashing creates a fixed-length fingerprint of data that...