# GPlates not run due to MacOS security -- from NSB
**URL:** https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113
**Category:** Q&A
**Created:** [8 April 2020 22:45 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113 "2020-04-08T22:45:32Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@mchin](https://discourse.gplates.org/u/mchin)
#### Post date: [8 April 2020 22:45 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/1 "2020-04-08T22:45:32Z")
This is a question from @NSB. I moved it manually to Q&A category.
* * *
Is this site feedback? I don’t know. Maybe I haven’t even got to the site yet. Earlier today, I downloaded 2.2.0 and tried to run it up, ready to begin tutorial 1.1, but I got this error message: . In case you see this files name rather than its content, it says “macOS cannot verify that this app is free from malware” (Cheek!) Has anyone else experienced this, and has any cure or workaround been identified? (If it’s any help, the OS is 10.15.3.) Also, I’m not entirely sure I’m sending this to the right place; if anyone notices this and knows it isn’t the right place, please tell me. Thanks.
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### Author:  [@mchin](https://discourse.gplates.org/u/mchin)
#### Post date: [8 April 2020 22:46 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/2 "2020-04-08T22:46:10Z")
Hi NSB,
1. try to run GPlates first and it will fail
2. go to “System Preferences”-\>“Security & Privacy” and allow the GPlates
see the screenshot below .
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### Author:  [@NSB](https://discourse.gplates.org/u/NSB)
#### Post date: [8 April 2020 22:57 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/3 "2020-04-08T22:57:02Z")
Thanks mchin – sorted.
NSB, alias Nick, the N is for Nick
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### Author:  [@mchin](https://discourse.gplates.org/u/mchin)
#### Post date: [8 April 2020 23:00 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/4 "2020-04-08T23:00:32Z")
Hi Nick,
Long time no see. Good to see you here. 😆
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### Author:  [@nflament](https://discourse.gplates.org/u/nflament)
#### Post date: [9 April 2020 05:06 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/5 "2020-04-09T05:06:20Z")
Hi NSB,
The workaround is to right click on the file and select “open”.
Regards,
Nicolas
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### Author:  [@NSB](https://discourse.gplates.org/u/NSB)
#### Post date: [9 April 2020 13:14 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/6 "2020-04-09T13:14:13Z")
Err, infinite time, no see, mchin . . . I don’t think we’ve ever met (and I don’t bear an uncanny resemblance to any prominent C20th politicians – I just dug his beard).
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### Author:  [@mchin](https://discourse.gplates.org/u/mchin)
#### Post date: [11 April 2020 00:57 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/7 "2020-04-11T00:57:16Z")
😅
Sorry, I guess I was thinking of another Nick who was a PHD candidate here long time ago. 😄 😄 😄 And his name is Nicholas Barnett-Moore 😆 😆 😆
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### Author:  [@john.cannon](https://discourse.gplates.org/u/john.cannon)
#### Post date: [20 August 2020 04:47 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/8 "2020-08-20T04:47:23Z")
Today’s [pyGPlates release](https://discourse.gplates.org/t/pygplates-supports-python-3/165) no longer has this security issue on macOS (including Catalina). The next public release of GPlates (end of this year) should also no longer have this issue.
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### Author:  [@john.cannon](https://discourse.gplates.org/u/john.cannon)
#### Post date: [10 September 2021 08:20 UTC](https://discourse.gplates.org/t/gplates-not-run-due-to-macos-security-from-nsb/113/9 "2021-09-10T08:20:23Z")
[GPlates 2.3](https://discourse.gplates.org/t/gplates-2-3-released/374) no longer has this security issue on macOS (ie, it should not get blocked when it is first opened).