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Living Cookbook is quarantined by Norton Antivirus (false positive)

If Norton Antivirus doesn't have any data about a program it tries to determine whether it is a threat using its SONOR heuristics algorithm. This algorithm is extremely conservative and will flag new programs with few users as a threat and quarantine the program's files.

We submit all new versions of Living Cookbook to Norton for certification. 100% of the files we have sent to Norton have been certified as safe and free of any viruses or malware (this process is known as whitelisting). Whitelisting typically takes about a week.

Despite our efforts to get all of our software whitelisted, Living Cookbook can still get flagged as a threat in two scenarios:

  1. Your virus definitions are not up to date. Even if Living Cookbook has been whitelisted it will still get quarantined if your copy of Norton doesn't know this. Your virus definitions need to be up to date in order for your copy of Norton to know that Living Cookbook has been whitelisted.
  2. If you have reported a defect and we release a new version of Living Cookbook to resolve the issue, you may not want to wait a week while Norton certifies the new version. If you install and run Living Cookbook before it has been whitelisted it will probably get quarantined. However, there is an easy workaround to prevent this.

To prevent Norton from automatically quarantining Living Cookbook you can change Norton's SONAR settings to prompt you before automatically quarantining software. Please try the following:

  1. Open Norton 360.
  2. Click Settings.
  3. Click Antivirus.
  4. Under Sonar Advanced Mode, next to Remove Risks Automatically, select "Ask Me".
  5. Click Apply.

Now Norton will prompt you before automatically deleting software. If you are confident that Living Cookbook is not a threat, allow it to continue running. If you are not confident that Living Cookbook is not a threat the best alternative is to wait for the new version to be whitelisted by Norton.