HackShield and BlackCipher errors

http://maplestory.nexon.net/news/news/current/00I9o/

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Originally Posted by Nexon

http://nxcache.nexon.net/spotlight/2...9356c46e62.jpg

If you're experiencing HackShield or BlackCipher errors, please make sure that both are up to date. Please follow these steps:

1. Go to our Game Client and Updates page.
2. Scroll down to the 'Download HackShield Manual Patch' and 'Download BlackCipher Manual Patch' sections.
3. Follow the instructions listed in these sections.

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Is it even possible for the client not to patch those to the current version?

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Originally Posted by Shadow Trainer

Is it even possible for the client not to patch those to the current version?

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Apparently the auto-update for those is buggy, and will sometimes corrupt them instead of patching.
The manual patch this notice tells you to download is actually more like a clean install. It will hopefully get updated when you run it.