Cypher Link module specifically targets BOTs' email-spamming issue. BOTs read exposed 'mailto' Email IDs and spam individuals' inboxes.
At certain level, this module helps in overcoming email-spamming issue by exposing encrypted 'mailto' Email IDs to the BOTs.

Here, concerned link items are encrypted at the server end (through PHP), and Javascript on the client side decrypts them to take appropriate action.

With respect to Drupal, encryption/decryption of field values happens over 'Cypher Link' field-formatter. And currently, it has support for Links, Email, Text and Integer field types.

Important: Javascript should be enabled at the client end for the working of this module.

Supporting organizations: 
Idea from Axelerant project

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