Docs: Fix broken URLs where possible.

The remaining broken links are to the tickets on the deprecated Phabricator.
Those URLs shall be updated after migrating the issues to TF-M GitHub mirror.

Signed-off-by: Anton Komlev <anton.komlev@arm.com>
Change-Id: I3e8715bd4affc6829785f622804fa1f89116dd41
diff --git a/docs/security/index.rst b/docs/security/index.rst
index a51dacb..16ebe62 100644
--- a/docs/security/index.rst
+++ b/docs/security/index.rst
@@ -27,7 +27,7 @@
 .. warning::
    If any security vulnerability was found, please **do not**
    report it in the `issue tracker`_ or on the `mailing list`_. Instead, please
-   follow the `TrustedFirmware.org security incident process`_.
+   follow the `Security incident process`_.
 
 One of the goals of this process is to ensure providers of products that use
 TF-M have a chance to consider the implications of the vulnerability and its
@@ -44,10 +44,10 @@
 TF-M values researchers and community members who report vulnerabilities and
 TF-M policy is to credit the contributor's name in the published security advisory.
 
-.. _issue tracker: https://developer.trustedfirmware.org/project/view/2/
+.. _issue tracker: https://github.com/TrustedFirmware-M/trusted-firmware-m/issues
 .. _mailing list: https://lists.trustedfirmware.org/mailman3/lists/tf-m.lists.trustedfirmware.org/
-.. _TrustedFirmware.org security incident process: https://developer.trustedfirmware.org/w/collaboration/security_center/
-.. _Security Incident Process: https://developer.trustedfirmware.org/w/collaboration/security_center/reporting/
+.. _Security incident process: https://trusted-firmware-docs.readthedocs.io/en/latest/security_center/incident_handling_process.html
+
 
 --------------
 
diff --git a/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.rst b/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.rst
index 993f1a8..1f1c8cc 100644
--- a/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.rst
+++ b/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.rst
@@ -160,8 +160,7 @@
 `v1.4.1`_ fixed this issue as a patch release.
 
 .. _42e77b: https://review.trustedfirmware.org/plugins/gitiles/TF-M/trusted-firmware-m/+/42e77b561fcfe19819ff1e63cb7c0b672ee8ba41
-
-.. _v1.4.1: https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tag/?h=TF-Mv1.4.1
+.. _v1.4.1: https://review.trustedfirmware.org/plugins/gitiles/TF-M/trusted-firmware-m/+/dd1fe44448db0f1750794cd9cf5596033f90f6f9
 
 ---------------------