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3D concept cover image of CTF competition with flags planted in different topic classification boxes.

Platform Safety · 2026-07-26

What is CTF Competitions? A Beginner's Guide to Cybersecurity

CTF may sound like a term that only appears in hacker movies, but in reality, it is the most common legitimate training ground in the global cybersecurity community, with actual prizes to be won. This article explains how CTF competitions operate and how complete beginners can start getting

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3D image representing encryption differences between two chat modes.

Platform Safety · 2026-07-25

Differences Between Telegram Secret Chats and Regular Chats Encryption

Many people assume that chatting on Telegram automatically ensures encryption; however, regular chats and secret chats offer vastly different levels of protection. This article explains the technical differences between the two and when to use each one.

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Cover image showing the concept of recalled messages on LINE, WhatsApp, and Telegram.

Platform Safety · 2026-07-18

How to Legally View Recalled Messages on LINE, WhatsApp, and Telegram

When a message is recalled, many people are immediately curious about what the other person said. In certain situations, your device may have left traces of that message locally. This article explains the message residue logic for LINE, WhatsApp, and Telegram, as well as several ways to verify

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Cover image illustrating the security risks of Telegram channels and groups.

Platform Safety · 2026-07-16

Telegram Channel and Group Security Risks: Key Points to Confirm Before Joining

Telegram is known for its high privacy and openness, but these characteristics also make it a hotspot for scams, malicious content, and account attacks. From fake official channels to phishing links in groups, risks often hide in seemingly normal interactions. This article discusses several common

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