Using a non-work phone or computer, you can contact Lorenzo Franceschi-Bicchierai securely on Signal at +1 9, lorenzofb on Wickr, OTR chat at or email if a user sets the "last seen" setting to "Nobody," other WhatsApp users-as well as some online sites that offer this service-can see whether a specific number is online. "And if even that doesn’t work correctly, then it is actively misleading and potentially endangering WhatsApp users."ĭo you reverse engineer and research vulnerabilities in mobile apps? We’d love to hear from you. It is framed in such a way as to imply that of course there are people with whom you still want to share your status," Galperin told Motherboard in an online chat. "To begin with, this setting does not make it easy to simply not share your online status with anyone. The options are also framed as choosing who can see your status updates although you can select no contacts, effectively hiding them from everyone, there's no dedicated option to simply hide your status updates either.Įva Galperin, the director of cybersecurity at the Electronic Frontier Foundation and one of the world's foremost experts on stalkerware, warned that this can enable stalking behavior. It works similarly to a Facebook post or an Instagram story: you can fine-tune which contacts see your message, but the feature does not let you appear offline. That's because on WhatsApp, "status" refers to status updates on the app. But you simply cannot hide whether you are online, not to your contacts, nor to anyone. WhatsApp offers a feature to control your "status," which users may think refers to their contacts seeing if they are online or not.
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