Lenovo ThinkVantage Client Security Solution 8.3 User Manual Page 80

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Atmel-ThinkPadT60/R60/X60/X300,ThinkCentreM57
Intel-ThinkPadT500/R500/X200/X301
STMicro-ThinkPadT410/T510/X201/T420/T520/X220,ThinkCentreM90
Winbond-ThinkCentreM58
TheseTPMshavedifferentcharacteristicswhentheyenterlockoutmode,asdescribedbelow:
AtmelTPM:
Nolockoutduringtherst15badpasswordattempts
The16thbadpasswordattemptresultsinalockoutperiodof1.1minutes
Then,nolockoutduringthenext15badpasswordattempts
Thenextlockoutperiodis2.2minutes
Eachlockoutperioddoubles,aftereachbatchof15badpasswordattempts,uptoamaximumlockout
periodof4.7hours
Lockoutisresetifthecomputeristurnedoff
IntelTPM:
Nolockoutduringtherst100badpasswordattempts
The101stbadpasswordattemptresultsinalockoutperiodof16seconds
Eachsubsequentbadpasswordattemptresultsinalockoutperiodtwiceaslongasthepreviouslockout
period,withoutamaximumlockoutperiod
Thebadpasswordcounterdecreasesbyoneeachhour,untilitdecreasestozero
STMicroTPM:
Nolockoutduringtherst40badpasswordattempts
The41stbadpasswordattemptresultsinalockoutperiodofthreeseconds
Eachsubsequentbadpasswordattemptresultsinalockoutperiodtwiceaslongasthepreviouslockout
period,withamaximumlockoutperiodoftwohours
WinbondTPM:
Therstbadpasswordattemptresultsinalockoutperiodof0.25millisecond
Eachsubsequentbadpasswordattemptresultsinalockoutperiodtwiceaslongasthepreviouslockout
period,withamaximumlockoutperiodof14hours
Note:Ittakes13badattemptstoreachalockoutperiodofonesecond.
After24hours,thebadpasswordcounterisresettozero
74ClientSecuritySolution8.3DeploymentGuide
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