Google is making it easier to use security keys and its Advanced Protection Program to secure Google Accounts on iOS devices. Thanks to changes rolling out today, anyone with an Apple device (iOS 13.3 and above) will be able to use Google’s Titan Security Keys to secure both work and personal Google Accounts.

Because both USB-A and Bluetooth Titan keys have NFC functionality, signing-in should be as easy as tapping your key to the back of your iPhone. You will also be able to use Lightning security keys, like the YubiKey 5Ci, to secure your Google Accounts — or any USB security key if you have an Apple Lighting to USB Camera Adapter. Google recommends installing its Smart Lock app to manage Bluetooth security keys and use your phone’s built-in key.

A new Advanced Protection Program is meant for clients who are high-risk for a targeted online attack, such as IT administrators, CEOs and those who work in security-sensitive roles in finance and government. To protect against phishing or account takeovers, the program would enforce the use of Google’s Titan Security Keys or compatible hardware. Admins would be able to automatically block access to third-party apps that the company does not trust. The program will be released in beta over the next few days.

Google has also made improvements to its G Suite security and alert center for admins, which it launched in beta back in April. The new alert center is now equipped with machine learning models that detect security risks such as unusual external file sharing or download behavior. Admins can now receive alerts of such “anomalous activity” in the G Suite alert center. It will also roll out support for password vaulted apps through Cloud Identity over the next few days.

Titan Security Keys, which only have been available in the US since last fall, will soon be available in Japan, Canada, France and the UK. The Bluetooth-enabled keys have drawn criticism from the security community over safety concerns. Google recalled some of its Titan Security Keys earlier this year due to a minor security flaw.

Security concerns are a major reason why Google’s productivity platform isn’t quite taking off with bigger businesses, who tend to stick with Microsoft Office for that very reason. Earlier this year, the company launched several new security tools for G Suite clients, including a beta launch of advanced protection for malware and phishing attacks. With this latest set of tools, it’s likely that Google hopes to prove it takes the security of such high-profile clients seriously.

Not all Titan Security Keys have the bug, which Google says is due to a misconfiguration in the key’s Bluetooth pairing protocols. Only the Bluetooth Low Energy (BLE) model of Titan Security Keys contain the bug. If your Titan Security Key has a “T1” or “T2” on the back of it, it means it has the security bug and is eligible for a replacement from Google.

But even if your Titan Security Key has the bug, don’t stop using it while waiting for a replacement. Google warns that even a key with a security bug is safer than using no key at all. Just take extra precautions, such as using your security key away from other people and immediately unpairing it after you sign-in to your Google account. Google has more specific instructions for iOS and Android devices, which you can read here.

The large number of security flaws found in Bluetooth-enabled devices in recent years has raised questions of whether the technology is safe. YubiCo, Google’s competitor in the security key space, criticized Google for launching a Bluetooth-enabled security key. “BLE does not provide the security assurance levels of NFC and USB, and requires batteries and pairing that offer a poor user experience,” wrote the company in a blog post last year.

But the scope of the threat impacting the Titan security keys appears to be pretty small, according to Lauren Weinstein of People for Internet Responsibility. She added that using the Bluetooth security key for two-factor authentication is far safer than turning it off altogether or relying on SMS authentication. “(…the Titan security bug) needs to be fixed of course, and Google is doing that by offering free replacement keys, but for most users it is unlikely to be a problem in practice,” said Weinstein in a direct message to Engadget.