The Enable Filtering option in Custom Dimensions allows you to filter sensitive information and anonymize data before storing the data on the VWO server. All anonymized values are displayed as vwo_anonymized in the reports.
By default, VWO detects information formats for email addresses, credit cards, social security numbers, phone numbers, and looks for data that may contain authentication tokens and other unique data.
You can enable report filtering by enabling the option Enable Filtering present in Create a Custom Dimension dialog. For more information on how to enable custom dimensions, refer to Creating a Custom Dimension section.
To safeguard user privacy, VWO identifies and anonymizes any potential Personally Identifiable Information (PII) or sensitive data of users before storing it on its servers. This is done to ensure that no sensitive information is captured in custom dimensions and sent to VWO. However, VWO is not 100% accurate at detecting all sensitive information, but it searches for email addresses, phone numbers, credit card numbers, IP addresses, etc.
We strongly advise you not to send any sensitive information in VWO’s custom dimensions.
1. The password field will always be anonymized, regardless of whitelisting such fields.
2. For numerical inputs like credit card details, social security numbers, or CVV, enabling anonymization will replace the actual input with zeroes.
3. By default, VWO replaces the last octet of IP Address with 0 before saving it.