# Catalina malware alert message **URL:** \ **Category:** macOS\ **Created:** [November 19, 2019, 10:26am UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200 "2019-11-19T10:26:33Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Sergio\_Tamborini](https://forum.xojo.com/user_avatar/forum.xojo.com/sergio_tamborini/32/729_2.png) [@Sergio\_Tamborini](https://forum.xojo.com/u/Sergio_Tamborini)\ **Post date:** [November 19, 2019, 10:26am UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/1 "2019-11-19T10:26:33Z")
Hello all! In some of my app, under Catalina, my users have an alert that says it cannot verify if it’s a malware or not and closes the application. I compiled my app with 2019r2 and signed with last release of AppWrapper, and I don’t know what to do more… Any suggestions? ---
**Author:** ![Beatrix\_Willius](https://forum.xojo.com/user_avatar/forum.xojo.com/beatrix_willius/32/282_2.png) [@Beatrix\_Willius](https://forum.xojo.com/u/Beatrix_Willius)\ **Post date:** [November 19, 2019, 10:32am UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/2 "2019-11-19T10:32:17Z")
Did you notarize your app with AppWrapper? The forum is full of topics in regards to notarization. ---
**Author:** ![Rick\_Araujo](https://forum.xojo.com/user_avatar/forum.xojo.com/rick_araujo/32/251_2.png) [@Rick\_Araujo](https://forum.xojo.com/u/Rick_Araujo)\ **Post date:** [November 19, 2019, 10:56am UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/3 "2019-11-19T10:56:58Z")
Get a screen shot about the problem. Old plugins also do that. ---
**Author:** ![Sergio\_Tamborini](https://forum.xojo.com/user_avatar/forum.xojo.com/sergio_tamborini/32/729_2.png) [@Sergio\_Tamborini](https://forum.xojo.com/u/Sergio_Tamborini)\ **Post date:** [November 19, 2019, 11:15am UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/4 "2019-11-19T11:15:02Z")
> [@463610:@Rick Araujo](#): > > Get a screen shot about the problem. Old plugins also do that. Yes but the only ones is mbs, cubesql and mysql plugins… ---
**Author:** ![Sergio\_Tamborini](https://forum.xojo.com/user_avatar/forum.xojo.com/sergio_tamborini/32/729_2.png) [@Sergio\_Tamborini](https://forum.xojo.com/u/Sergio_Tamborini)\ **Post date:** [November 19, 2019, 11:16am UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/5 "2019-11-19T11:16:03Z")
> [@463608:@Beatrix Willius](#): > > Did you notarize your app with AppWrapper? The forum is full of topics in regards to notarization. Yes, used AppWrapper (and helped him to solve some bugs in the last days) ---
**Author:** ![Ulrich\_Bogun](https://forum.xojo.com/user_avatar/forum.xojo.com/ulrich_bogun/32/1864_2.png) [@Ulrich\_Bogun](https://forum.xojo.com/u/Ulrich_Bogun)\ **Post date:** [November 19, 2019, 11:36am UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/6 "2019-11-19T11:36:04Z")
> [@463612:@Sergio Tamborini](#): > > Yes, used AppWrapper (and helped him to solve some bugs in the last days) Just to make sure we are not talking different things, because it pretty much sounds like it could be the reason: Did you just code sign (and harden) your app with AppWrapper or did you also use it to notarize the final app/dmg? These are two different steps (which can be combined of course). ---
**Author:** ![Sergio\_Tamborini](https://forum.xojo.com/user_avatar/forum.xojo.com/sergio_tamborini/32/729_2.png) [@Sergio\_Tamborini](https://forum.xojo.com/u/Sergio_Tamborini)\ **Post date:** [November 19, 2019, 7:36pm UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/7 "2019-11-19T19:36:01Z")
> [@463619:@Ulrich Bogun](#): > > Just to make sure we are not talking different things, because it pretty much sounds like it could be the reason: Did you just code sign (and harden) your app with AppWrapper or did you also use it to notarize the final app/dmg? These are two different steps (which can be combined of course). OMG!!! Thanks a lot!!! ---
**Author:** ![Ulrich\_Bogun](https://forum.xojo.com/user_avatar/forum.xojo.com/ulrich_bogun/32/1864_2.png) [@Ulrich\_Bogun](https://forum.xojo.com/u/Ulrich_Bogun)\ **Post date:** [November 19, 2019, 8:20pm UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/8 "2019-11-19T20:20:25Z")
😃 You’re welcome! ---
**Author:** ![system](https://forum.xojo.com/uploads/default/original/1X/455b4dcc0e61630e9f81940004ddffa49c432a46.png) [@system](https://forum.xojo.com/u/system)\ **Post date:** [April 29, 2021, 4:10pm UTC](https://forum.xojo.com/t/catalina-malware-alert-message/51200/9 "2021-04-29T16:10:34Z")