Is imklaunchagent virus or Apple system file? My client suspects the imklaunchagent damages his computer. I did some research but found two explanations. One is Apple's system file and the other is virus. Which one is true?
Apple System File?
claim 1

man imklaunchagent&quot; in Terminal.app says:
imklaunchagent is automatically invoked to launch input methods that
are selected via direct user inter- action. It is not intended to be
invoked via other means and must not be terminated. imklaunchagent
monitors abnormal behavior and will disallow an input method from
launching if it repeatedly terminates unexpect- edly within a short
timespan.

(Reference: https://discussions.apple.com/thread/251183015)
claim 2

Do you happen to write in, say, Chinese or Japanese? I think the
process you are mentioning is part of Apple's Input Method Kit
framework (
http://developer.apple.com/releasenotes/Cocoa/RN-InputMethodKit/index.html),
which is used to support languages that use complex scripts.
The program itself is located in: /System/Library/Frameworks/InputMethodKit.framework/Versions/A/Resources/imklaun
chagent
(Reference: https://discussions.apple.com/thread/1463920)

claim 3 (see answer, not the question)

It's a standard macOS process. If you ever google a process name &amp; all
you get are 'malware removal sites trying to sell you something'…
think twice about why. If the threat was real, the make-a-quick-buck
sites would be far far down the list, well below real issues faced by
real people.
The process is inside a protected area, in the System folder on the
System partition. You'd have to try very, very hard to overwrite it
with a malicious component - including rebooting to Recovery &amp;
manually disabling SIP. macOS simply will not let a random process
anywhere near that area, even with admin permission.

(Reference: https://superuser.com/questions/1578763/how-do-i-remove-the-imklaunchagent-malware)
Virus?
(Reference: https://sensorstechforum.com/imklaunchagent-mac-remove/)
I think my research already answers the question. Just to let my client feel safe and make sure the result is correct. I will keep this thread for other users.