Why shouldn't I trust the client in my game?

Because the client runs on the player's device, under their control, so it can be inspected, modified, and manipulated, meaning anything important must be validated server-side rather than trusted from the client. The client (the game running on the player's machine) is fundamentally untrustworthy for security purposes: a determined player can inspect it, modify it, intercept and alter its communications, and manipulate its state, so if you trust the client for anything that matters (resource amounts, scores, validation, permissions, purchases), players can cheat or exploit by tampering with it. This is the most common game security mistake. For online games especially, the rule is to validate anything important on the server (which you control) rather than trusting the client's word, the client can suggest actions, but the server should verify and enforce. For single-player games, the stakes are lower (cheating mostly affects the cheater), but for anything competitive, economic, or shared, server validation is essential. Bugnet captures the errors and anomalies that client tampering and exploitation trigger, so you can see the technical signs of attempted cheating (anomalous patterns, errors from manipulated requests) and respond, complementing the server-side validation that is the real defense against an untrustworthy client.

How do I prevent cheating in my game?

Validate important actions and state on the server (do not trust the client), detect anomalies and exploitation, and handle the cheating methods players find, since the client can always be manipulated, server authority is the defense. Cheating happens when players manipulate the client (which they control) and the game trusts it, so prevention centers on not trusting the client: validate anything that matters server-side (resource changes, scores, game state, actions), so the server (which you control) enforces the rules and rejects manipulated client requests. For competitive or economic games, this server authority is essential. Also detect anomalies (unusual patterns indicating cheating or exploitation) and respond to the cheating methods players find (patching exploits as they emerge). For single-player games, cheating mostly affects the cheater, so the investment depends on your game. Bugnet captures the errors and anomalies that cheating and exploitation trigger, so you can see the technical signs (anomalous patterns, errors from manipulated requests or exploits) and respond, supporting your anti-cheat efforts by surfacing exploitation attempts and their effects, complementing the server-side validation that is the foundation of preventing cheating in a game where the client cannot be trusted.

How do I secure my game's data?

Secure sensitive data with encryption and secure storage, do not hardcode secrets or store credentials in plaintext, validate server-side, and protect data in transit, so sensitive data is not exposed to compromise. Insecure data handling is a common security mistake: storing credentials, keys, or personal data in plaintext, hardcoding secrets in the client (where they can be extracted), or transmitting sensitive data unprotected exposes it. To secure data: encrypt sensitive data at rest and in transit, use secure storage for credentials and keys (not hardcoded in the client, which players can inspect), keep secrets server-side, validate and sanitize data, and follow security best practices for your platform. For personal data, also respect privacy requirements. The principle is that the client and its data are exposed to the player, so sensitive things must be protected and kept server-side where possible. Bugnet helps ensure your security handling works reliably by capturing crashes in security-related code (a crash in encryption, authentication, or data handling), so the security measures function correctly, while you implement the proper data protection (encryption, secure storage, server-side secrets) that secures your game's data against compromise.

Common Game Security Mistakes

Quick answer: The biggest game security mistakes are trusting the client, no server validation, insecure data, and ignoring exploits, fix these by validating server-side and securing data.

Security flaws let players cheat, exploit, or compromise your game. Here are the most common game security mistakes and how to avoid them.

Trusting the Client

The most common game security mistake is trusting the client, assuming the player's game cannot be tampered with, so players can cheat, manipulate state, or exploit by modifying the client. The client is in the player's control and cannot be trusted for anything that matters.

The fix is validating anything important server-side rather than trusting the client. Bugnet captures the errors and anomalies that client tampering and exploits can trigger, so you can see signs of exploitation (anomalous patterns, errors) and respond, complementing server-side validation.

Not Validating on the Server

A second mistake is not validating actions and state on the server (for online games), so manipulated client requests are trusted, letting players cheat or break the game. Without server validation, the client's word is taken as truth.

The fix is server-side validation of important actions and state. Bugnet captures the errors and anomalies that invalid or manipulated requests trigger, so you can see exploitation attempts and their effects, supporting your server-side validation by surfacing the technical signs of attempted cheating.

Storing Sensitive Data Insecurely

A third mistake is storing sensitive data (credentials, keys, personal data) insecurely, in plaintext, hardcoded, or unprotected, exposing it to compromise. Insecure storage of sensitive data is a serious security risk.

The fix is securing sensitive data (encryption, secure storage, no hardcoded secrets). Bugnet helps ensure your security handling does not crash (capturing crashes in security-related code) while you implement proper data protection, so the security measures work reliably.

Avoid the big game security mistakes: trusting the client, no server validation, insecure data, and ignoring exploits. Validate server-side and secure data.