What can be done to keep hackers from ruining online games?

#1 No hacking is the same, so it depends on the type of hacks you're referring to.

In general, keeping as much as possible on the server will prevent most gameplay hacks.

#2 Okay. To be Specific
1. Dos(Denial of Service)
2. People using Packet sniffers to detect data packets
3. Speed hacking
4. People using programs to crack passwords
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The list goes on. I mean there are so many threats. I was mainly worried about threats like stealing accounts or hacking into the database. There are two things I wish I could stop with like a nearly 100% garanentee. Maybe it was bad idea making this topic. Idk, but I just wanted to learn some things.

#3 1 - <shrug>
2 - you can sniff Torque packets all you like, the server ignores client data alterations. You tell it "I'm moving forward" and it determines how far and fast.
3 - see 2.
4 - lock 'em out after three failed tries. It is very unlikely that a program will get it right in three tries.

#4

Quote:I have had dream of making some wonderful games. I am very serious about it and willing to commit and do what needed, but lately I have been getting very very scared. The ways have been increasing like crazy and it seems like there are billions of potential security threats backwards and forwards. How do online games even stay alive these days as is? It seems crazy?

Its not all that bad. New games can still grow and flourish. However, there are always people out to harm you as a developer. There are always chaters, but people actually going for the servers are not quite as common.

#5 Elite back-hacker death squads!