Brian Acton, yesterday (20.03.18) joined thousands of people in taking to Twitter with the hashtag "#DeleteFacebook" trending on the micro-blogging site, amid the investigation into Facebook's breach of data.
He wrote: "It is time. #deletefacebook (sic)"
Acton left WhatsApp and Facebook in 2017, after he sold the app to Mark Zuckerberg for $19 billion in 2014. He is now works at competitor Signal, which puts privacy first.
It comes after the Campaign group Privacy International warned internet users that their privacy concerns extend beyond Facebook.
The iconic social networking site has recently come under fire after it was revealed that the data of millions of Facebook users has been harvested, but the group has insisted that is just the "tip of the iceberg".
A spokeswoman told the BBC: "The current focus is on protecting your data being exploited by third parties, but your data is being exploited all the time.
"Many apps on your phone will have permission to access location data, your entire phone book and so on. It is just the tip of the iceberg."
Facebook has recently faced criticism from a number of high-profile politicians, including British Prime Minister Theresa May, who admitted to being concerned by the situation.
Meanwhile, Facebook founder Mark Zuckerberg is facing increasing pressure to open up about the social network site's recent conduct.
The company has been accused of failing to properly inform users that their profile data may have been obtained and then kept by Cambridge Analytica.
Adam Schiff, the highest-ranking Democrat on the House Intelligence Committee in the US, argued that Zuckerberg should be forced to face questions on the issue.
He explained: "I think it would be beneficial to have him come testify before the appropriate oversight committees.
"And not just Mark but the other CEOs of the other major companies that operate in this space."