PS. When I use pkgutil on the installer package, it looks like the pkg is signed. I get the following results:
% pkgutil --check-signature MyInstaller.pkg
Package "MyInstaller.pkg":
Status: signed by a developer certificate issued by Apple (Development)
Certificate Chain:
1. 3rd Party Mac Developer Installer: MyCompany
Expires: 2024-11-12 22:49:38 +0000
SHA256 Fingerprint:
F4 86 F1 45 97 3D DB B6 E2 92 3D 04 69 CE E3 04 9F 9D B3 4E F5 62
4B 7C 0D 49 96 C2 F4 87 8F 4C
------------------------------------------------------------------------
2. Apple Worldwide Developer Relations Certification Authority
Expires: 2030-02-20 00:00:00 +0000
SHA256 Fingerprint:
DC F2 18 78 C7 7F 41 98 E4 B4 61 4F 03 D6 96 D8 9C 66 C6 60 08 D4
24 4E 1B 99 16 1A AC 91 60 1F
------------------------------------------------------------------------
3. Apple Root CA
Expires: 2035-02-09 21:40:36 +0000
SHA256 Fingerprint:
B0 B1 73 0E CB C7 FF 45 05 14 2C 49 F1 29 5E 6E DA 6B CA ED 7E 2C
68 C5 BE 91 B5 A1 10 01 F0 24
Topic:
Code Signing
SubTopic:
Notarization
Tags: