Explanation of virus signature updates

Hello, Some users have experienced delays or were unable to download recent virus signature updates. Normally, ESET produces incremental updates to the virus signature database which are very compact in size, averaging about 10KB per day.

However, over time, these incremental updates become very large in size. ESET regularly releases a larger base signature update that aggregates these into one large update.

Unfortunately, a capacity issue on our server caused a delay in pushing out the latest large update package. ESET NOD32 Antivirus 3.0's updating mechanism is architected in such a way that users were able to download a much smaller update file; users of version 2.x were mostly impacted. Users with a valid NOD32 2.x license have always been able to upgrade to 3.x at no cost.

We anticipate that all users will have downloaded the update by now and ESET has made infrastructure changes to ensure that such capacity issues do not occur in the future.

Sincerely, ESET Team