Torre

Thanks everyone. Interesting data points with a big spread... so once again no conclusive evidence either way.

Well that seems consistent then. I certainly hope the MBAM folk are listening!

Thanks brcd. If you don't have a lot of music, movies, photos and don't do a lot with large files stored locally on your disk (such as Virtual Machines, don't worry if you don't know what these are), you probably don't have a large home directory. Easiest way is to click on a Finder window, then type Shift-Cmd-H, then Cmd-I (shortcut for Get Info). Make sure you don't click on anything in between the two key sequences. You should see the info window pop up with a house icon and your login name on the top left, and the size of your home folder is on the top right. For me, after trying

Thanks, brcd. In my case I tested with 5 different accounts on 4 different machines. Most of them showed ~1% CPU with infrequent jumps to 20%/40%. On the "problem" account it shows mostly ~15% with more frequent jumps to 60-80% (this is a long term estimated average; I've also seen it drop to sub-1%). This is also the account which has the largest home directory so I wonder if that has anything to do with the CPU usage. Would you be ok posting how much disk space your home directory uses? Mine as mentioned is >280GB.

MBAM support was very responsive in the end for me. However I am quite disappointed that the only suggested remedies were "remove browser extensions" (aside from one or two the rest are needed) and "remove your Library/Caches directory because it's larger than normal" (most of these were iTunes / Apple Music files, so not surprising they are large as I have a LOT of music). Neither helped. In my case MBAM CPU hogging (as opposed to occasional spikes) seem to be related to something else such as stuck installs. MBAM just seems very sensitive and happy to eat a lot of CPU at the slighte

So I promised to post the findings of the support ticket. Here we go. After testing MBAM across 4 machines and at least 5 accounts, There was no root cause found and I am still having high but not obscene CPU usage on one account (call this machine "Mac 1") One of the test machines (Mac 2) was more or less of the same vintage and used in a similar manner to the "problem" account on Mac 1, it did not exhibit high CPU Other accounts on Mac 1 also did not exhibit high CPU, however I was not able to replicate usage as closely I as I did on Mac 2 The only possibility remain

That's a GREAT question. I wish I knew what "normal" was but I don't, so I define "acceptable" as "It doesn't get in the way" and "isn't running at 60+% most every time I look", which was how it was before. Just as a recap 2-3 weeks ago I reported that RealTimeProtectionDaemon was going mostly 50% CPU, occasionally dropping to 20%, and frequently spiking to 90+%. Now it is (1) mostly hovering under 10 (2) occasionally hovering around 20% (3) sometimes spiking above 80. I was able to profile RTPD behaviour on a similar machine and also tried out a different user account on the same

Not sure... in my case RTProtectionDaemon definitely went nuts two evenings ago (I have Activity Monitor running as MWB support & I are still debugging this issue). This was after an OSX update and Office 365 also updated. The next morning RTPD seemed better behaved and I also found a stuck Office 365 update. Not sure if they are related. RTPD is now back to "acceptable" but still high CPU levels and I am still working with MWB support.

edit "Only a few EXTENSIONS were unused"

Thanks treed & MAXBAR1, this is useful information (for me at least!) Frankly I was a bit surprised about Chrome as few in our household use it, preferring Safari. Only a few were unused. I went ahead & cleaned out Firefox & Safari while I was at it but it did not help. There are no more than 4-5 extensions on Chrome and Safari remaining. Given that there are a few machines and users in my house and we are all having the same issue, I will try to find what I can about the other users and see if there is any commonality on symptoms and causes & let adas know, in case th

Thanks everyone for chiming in. I am sure it is as alvarnell said, in fact I was about to make the same point. I don't fault the MWB support personnel for stating fact (in my experience that's what engineers do, and we don't want it any other way!) MWB is also not the only company I know who are struggling with the new normal. To bring things back to the topic at hand, I am quite disappointed with attempted solution so far. As mentioned this affects all Macs of varying age and models in the household and I see many reports of high CPU in searches as well. Any Mac users NOT having CPU

Hi Adas I am in contact with the support agent, so far it is not helpful. It seems the diagnostic tool sniffs around for things in my system (helpers, plugins, etc.) and the only suggestion I have had so far is "remove Chrome plugins" (I've removed about four or five that I don't use) which doesn't help, and already the support agent seems ready to throw in the towel. In this respect, the support tool and support suggestion is no better than an EtreCheck report. The CPU issue is affecting EVERY Mac in the household and I have had to turn OFF "Malware Protection" on all of them. I

Thanks for all the replies. Here's a bit more information for the MWB support guys: it seems that only Malware Protection causes the CPU issues. I tried disabling both App Block and Malware Protection, then re-enabled each. Ad Block is fine but the second that Malware Protection is enabled the CPU goes crazy again. Secondly I respect what the MWB team has done. It is a great product, I like the company philosophy, and it catches stuff that the other guys don't. After the second time I used MWB to remove crap that <insert other product name> couldn't, I decided to pay for i

Adding my voice to the many who find v4.5.15 a CPU hog. I'm a big fan of Malwarebytes but only recently paid for premium as competitors (Avira, Avast, BitDefender, etc.) give it away free. Imagine to my surprise when I see RTProtectionDaemon hogging CPU constantly. It is never below 20% CPU, it is mostly above 60% CPU, it is often above 85% CPU on my 2015 MBP on Catalina 10.15.7. This issue appears to have been present since at least July without a fix. WORST of all, support does not respond. Opened a ticket yesterday and no human has said "boo" after 24 hours. I can't track my