Microsoft to block Entra ID script injection attacks starting October

There's something almost poetic about the phrase "script injection." It sounds like a medical procedure performed on a machine—a way to introduce a foreign substance into a living system and watch it take over. And in a very real sense, that's exactly what it is. When an attacker injects a script into an authentication flow, they're not just stealing a password; they're performing a kind of identity transplant, grafting their own intentions onto your digital body. Microsoft's decision to block these attacks in Entra ID is like the body finally learning to recognize its own cells and reject the invaders. What makes this weird and wild is the philosophical rabbit hole it opens. Entra ID, formerly Azure Active Directory, is essentially the bouncer at the club of your digital life. It decides who gets in and who gets thrown out. But the "you" it authenticates is not a soul or a consciousness—it's a collection of tokens, hashes, and behavioral signals. When script injection succeeds, it doesn't trick the bouncer into thinking the attacker is you; it rewrites the bouncer's understanding of who you are. The attack doesn't steal your identity so much as it forks it, creating a parallel version of you that the system accepts as legitimate. This is the quiet arms race happening beneath the surface of every login screen. Microsoft's October update is a defensive maneuver in an ongoing evolutionary struggle between the architects of trust and the architects of deception. Each patch is like a new layer of skin; each exploit is a new way to slip through the pores. The strange part is that this battle is not fought with brute force but with subtle manipulations of context and expectation—the digital equivalent of a con artist convincing a bank teller that they're someone else by knowing the right handshake. The deeper lesson here is that identity has always been a fragile construct, even offline. But online, it's a purely informational phenomenon, which means it can be copied, altered, and replayed. Microsoft's move is a reminder that the systems we rely on to know who we are are themselves uncertain about us. We trust them with our secrets, and in return, they offer us a provisional existence—one that can be revoked or hijacked at any moment. That's not a bug; it's the nature of the beast. Source: [Microsoft to block Entra ID script injection attacks starting October](https://www.bleepingcomputer.com/news/security/microsoft-to-block-entra-id-script-injection-attacks-starting-october/)