If it's not there, the password must've been gotten from you.@Kimputer, that's not correct. There are plenty of data breaches where the data hasn't been made public, and therefore isn't available to the haveibeenpwned.com site.
Malwarebytes
www.malwarebytes.com
-Log Details-
Scan Date: 11/27/18
Scan Time: 1:00 PM
Log File: 5f7d8700-f26e-11e8-a498-180373be0e53.json
-Software Information-
Version: 3.6.1.2711
Components Version: 1.0.482
Update Package Version: 1.0.8047
License: Trial
-System Information-
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: OPTIPLEX\Nataliia & aleks
-Scan Summary-
Scan Type: Threat Scan
Scan Initiated By: Manual
Result: Completed
Objects Scanned: 530134
Threats Detected: 10
Threats Quarantined: 0
Time Elapsed: 17 min, 37 sec
-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Detect
PUM: Detect
-Scan Details-
Process: 0
(No malicious items detected)
Module: 0
(No malicious items detected)
Registry Key: 2
PUP.Optional.InstallCore, HKU\S-1-5-21-977892953-2162632028-4269820573-1000\SOFTWARE\PRODUCTSETUP, No Action By User, [407], [481004],1.0.8047
PUP.Optional.InstallCore, HKU\S-1-5-21-977892953-2162632028-4269820573-1000\SOFTWARE\CSASTATS\ic, No Action By User, [407], [586068],1.0.8047
Registry Value: 1
PUP.Optional.InstallCore, HKU\S-1-5-21-977892953-2162632028-4269820573-1000\SOFTWARE\PRODUCTSETUP|TB, No Action By User, [407], [481004],1.0.8047
Registry Data: 0
(No malicious items detected)
Data Stream: 0
(No malicious items detected)
Folder: 1
PUP.Optional.WinYahoo.TskLnk, C:\USERS\NATALIIA & ALEKS\APPDATA\LOCAL\{F856CE0A-DCFE-A2B2-B166-875A950E7BC2}, No Action By User, [714], [484244],1.0.8047
File: 6
PUP.Optional.WinYahoo.TskLnk, C:\USERS\NATALIIA & ALEKS\APPDATA\LOCAL\{F856CE0A-DCFE-A2B2-B166-875A950E7BC2}\sona, No Action By User, [714], [484244],1.0.8047
PUP.Optional.WinYahoo.TskLnk, C:\Users\Nataliia & aleks\AppData\Local\{F856CE0A-DCFE-A2B2-B166-875A950E7BC2}\config.dat, No Action By User, [714], [484244],1.0.8047
PUP.Optional.WinYahoo.TskLnk, C:\Users\Nataliia & aleks\AppData\Local\{F856CE0A-DCFE-A2B2-B166-875A950E7BC2}\info.dat, No Action By User, [714], [484244],1.0.8047
PUP.Optional.WinYahoo.TskLnk, C:\Users\Nataliia & aleks\AppData\Local\{F856CE0A-DCFE-A2B2-B166-875A950E7BC2}\install.log, No Action By User, [714], [484244],1.0.8047
PUP.Optional.WinYahoo.TskLnk, C:\Users\Nataliia & aleks\AppData\Local\{F856CE0A-DCFE-A2B2-B166-875A950E7BC2}\Sqlite3.dll, No Action By User, [714], [484244],1.0.8047
PUP.Optional.WinYahoo.TskLnk, C:\Users\Nataliia & aleks\AppData\Local\{F856CE0A-DCFE-A2B2-B166-875A950E7BC2}\uninst.dat, No Action By User, [714], [484244],1.0.8047
Physical Sector: 0
(No malicious items detected)
WMI: 0
(No malicious items detected)
(end)
After this was done, I would move all my passwords to a secure and encrypted password tracking application such as 1Password or LastPass. After my passwords were moved, I would delete all credentialed data from Chrome, and also the Windows credential manager and let 1Password and/or LastPass handle the authentication from now on.
1Password : https://1password.com/
LastPass : https://www.lastpass.com