Welcome to Runtime! Today: Anthropic's Mythos Preview security model is finding a lot of bugs, but plugging those holes is still a challenge, an unlikely company joins the $1 trillion club, and the latest funding rounds in enterprise tech. Please forward this email to a friend or colleague! If it was forwarded to you, sign up here to get Runtime each week, and if you value independent enterprise tech journalism, click the button below and become a Runtime supporter today.