What are ZDI filters and why are they special? Zero Day Initiative (ZDI) Filters are filters created by Trend Micro TippingPoint to protect systems from vulnerabilities or exploits that have not yet been made public. These vulnerabilities or exploits are normally found by the TippingPoint ZDI group or reported to TippingPoint by outside entities.

ZDI Filter Hits include:

• Predisclosed Filters - Include limited details to protect the secrecy of a ZDI vulnerability discovery until a product vendor can develop a patch. Although Predisclosed filters apply to critical security events and do not describe the vulnerability to you, the filters provided through the DV service still protect your network environment from the unpatched vulnerability.
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• Disclosed Filters - After details are made public in coordination with the product vendor, the DV service provides an updated description.