Here's what happened on a recent threat deletion by BitDefender AntiVirus (B-AV) for Mac...
B-AV found a threat and said it deleted it, reported same, once) failed to in fact delete the threat. The threat was a spam email piece, tagged as "SPAM" by my server, came to my Inbox and was moved by SpamSieve to my Junk Folder. So it was never opened.
BAV report: "An infected file attempted to run on your device.
Threat name: Trojan.GenericKD.33914294
Path: /Users/bubba/Library/Mail/V7/34AE6827-DDA2-45DA-A900-D34DB30E6571/INBOX.mbox/Junk.mbox/0B23046C-DF1A-47A0-A078-9D270CA87E77/Data/0/3/5/1/Messages/1530834.emlx=>[Subject: ***SPAM*** Invoice PAID/Receipt][Date: Wed, 27 May 2020 14:32:44 +0100]=>Sales_Receipt_8869_05272020.xlsm
We deleted the file to prevent malicious commands from being executed on your device."
I search all reports. So I found that the file and it's attachment supposedly deleted by B-AV. It was still there in the exact spot indicated, not deleted. I was able to move the detected virus laden message and it's attached file to trash.
It's not so much that B-AV failed to detect (false positive), rather it's a Failed Action to eliminate the threat that is my complaint. I get these kinds of messages via email and filter them into a junk mailbox and never open. The second tier deletion by B-AV fails. I won't renew my service. Thought you'd like to know.