Email Server Ports Explained: Purpose, Protocols, and Security Best Practices
Learn the purpose of common email server ports, including SMTP 25, 465, 587, IMAP 143 and 993, POP3 110 and 995, and essential email security practices.
9 min read
Gowri Shankar Balasubramaniam
Articles
CVE-2026-103663: Ollama Path Traversal Vulnerability and RCE Risk Explained
Ollama is vulnerable to path traversal in the `/api/pull` endpoint due to insufficient validation of layer digests by the `digestToPath` function.
2 min read
ShinyHunters Claims CyrusOne data Breach: Risks for Data Centers
ShinyHunters claims it stole CyrusOne contracts, floor plans and access records. What the alleged breach means for data center operators and their tenants.
3 min read
Midnight Mimosa: Proxy Malware Pre-Installed on Android Phones
Some budget Android phones are compromised before they leave the box. The Midnight Mimosa campaign puts malicious code directly into device firmware, where it gains system-level privileges, commits ad fraud, and turns phones into residential proxies. This post explains how the framework works, why it is a supply-chain risk for enterprises, and what users, security teams and procurement leaders should do.
7 min read
Have You Seen Novalnet in Your Bank Statement?
Seen Novalnet AG on your bank statement? Learn what Novalnet is, why it appears instead of the merchant, and what to do if you don't recognise the charge.
6 min read
How to Get Ubuntu Linux Server Security Updates
Learn how to check, install, and automate security updates on Ubuntu Linux servers using apt and unattended-upgrades
1 min read Updated
Google GKE to Make Cloud Filestore the Default StorageClass for RWX PVCs
Google GKE is introducing Cloud Filestore as the default StorageClass for RWX PVCs, simplifying shared storage while requiring reviews of costs, VPC-SC policies, and Terraform configurations.
3 min read
Node.js Version EOL: Supported Versions and End-of-Life Guide
Check Node.js version EOL dates, LTS releases, supported versions, and upgrade guidance. Learn why keeping Node.js updated matters for security and production.
1 min read
How to Check if a Latitude and Longitude Is Within a Circle (Radius) in PHP
Learn how to check whether a GPS coordinate lies within a given radius of a center point in PHP, using the spherical law of cosines and the Haversine formula, with production-ready, validated code.
8 min read
Stripe to Acquire Parafin: Expanding Embedded Finance for Small Businesses
Stripe has agreed to acquire Parafin, expanding its embedded finance and lending capabilities for platforms and small businesses. Here’s what the deal means.
2 min read
Understanding Zimbra Mail Account Status
Zimbra accounts have six statuses that decide whether a user can log in and whether mail is delivered, queued or bounced. Here is each one, with the commands to manage them.
3 min read Updated
