Lovable's recent security fumble just gave pro software engineers one more reason to be wary of vibe coding . On Monday, an X user called Lovable out and said that the Swedish AI-coding startup suffered a mass data breach "affecting every project created before November 2025." The individual, who goes by the username "Impulsive" on X, said that they were able to access another user's code, AI chat histories, and customer data through their free Lovable account. "Nvidia, Microsoft, Uber, and