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Bharti Airtel has developed an artificial intelligence (AI)/machine learning-based solution to proactively detect, prevent, and eliminate phishing, spam, and fraud through messaging, and is testing it in partnership with HDFC Bank.

Following the inundation of spam calls that seem to originate from international numbers, WhatsApp’s engineering teams have moved to introduce new “classifiers” which can identify these calls and mark them as spam, sources in the know told ET.