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windows/security/information-protection/tpm/tpm-fundamentals.md
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@ -134,7 +134,7 @@ Increasing the PIN length requires a greater number of guesses for an attacker.
In that case, the lockout duration between each guess can be shortened to allow legitimate users to retry a failed attempt sooner, while maintaining a similar level of protection. In that case, the lockout duration between each guess can be shortened to allow legitimate users to retry a failed attempt sooner, while maintaining a similar level of protection.
Beginning with Windows 10, version 1703, the minimum length for the BitLocker PIN was increased to 6 characters to better align with other Windows features that leverage TPM 2.0, including Windows Hello. Beginning with Windows 10, version 1703, the minimum length for the BitLocker PIN was increased to 6 characters to better align with other Windows features that leverage TPM 2.0, including Windows Hello.
To help organizations with the transition, with Windows 10, version 1703 with the October 2017 [cumulative update](https://support.microsoft.com/help/4018124) installed,Windows 10, version 1709 and higher, and Windows 11, the BitLocker PIN length is 6 characters by default, but it can be reduced to 4 characters. To help organizations with the transition, with Windows 10, version 1703 with the October 2017 [cumulative update](https://support.microsoft.com/help/4018124) installed, Windows 10, version 1709 and higher, and Windows 11, the BitLocker PIN length is 6 characters by default, but it can be reduced to 4 characters.
If the minimum PIN length is reduced from the default of six characters, then the TPM 2.0 lockout period will be extended. If the minimum PIN length is reduced from the default of six characters, then the TPM 2.0 lockout period will be extended.
### TPM-based smart cards ### TPM-based smart cards