Knowledge Base

Security Best Practices

Effective security is essential for protecting data, infrastructure, and reputation. This article outlines key practices you can implement immediately.

Overview

Security is a continuous process that includes prevention, detection, and response. Below are the main pillars:

Identity & Access Management

Ensure the principle of least privilege:

# Example IAM policy (JSON)
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "s3:GetObject"
      ],
      "Resource": "arn:aws:s3:::my-bucket/*"
    }
  ]
}

Use multi‑factor authentication (MFA) for all privileged accounts.

Secure Coding & Configuration

Adopt a secure development lifecycle:

  1. Threat modeling
  2. Static analysis (e.g., eslint, bandit)
  3. Dependency scanning
  4. Runtime protection (WAF, CSP)

Network & Perimeter Defense

Segment your network and enforce firewall rules:

# Example iptables rule
iptables -A INPUT -p tcp --dport 22 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j DROP

Monitoring & Incident Response

Implement centralized logging and automated alerts:

# Sample Logstash pipeline snippet
input { beats { port => 5044 } }
filter { grok { match => { "message" => "%{TIMESTAMP_ISO8601:timestamp} %{LOGLEVEL:level} %{GREEDYDATA:msg}" } } }
output { elasticsearch { hosts => ["es:9200"] } }

Maintain an up‑to‑date incident response playbook.

Additional Resources