Index: psutil/_psbsd.py
--- psutil/_psbsd.py.orig
+++ psutil/_psbsd.py
@@ -2,7 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-"""FreeBSD, OpenBSD and NetBSD platforms implementation."""
+"""FreeBSD, OpenBSD, SecBSD and NetBSD platforms implementation."""
 
 import contextlib
 import errno
@@ -19,6 +19,7 @@ from . import _psutil_posix as cext_posix
 from ._common import FREEBSD
 from ._common import NETBSD
 from ._common import OPENBSD
+from ._common import SECBSD
 from ._common import AccessDenied
 from ._common import NoSuchProcess
 from ._common import ZombieProcess
@@ -52,7 +53,7 @@ if FREEBSD:
         cext.SWAIT: _common.STATUS_WAITING,
         cext.SLOCK: _common.STATUS_LOCKED,
     }
-elif OPENBSD:
+elif OPENBSD or SECBSD:
     PROC_STATUSES = {
         cext.SIDL: _common.STATUS_IDLE,
         cext.SSLEEP: _common.STATUS_SLEEPING,
@@ -281,7 +282,7 @@ def cpu_count_logical():
     return cext.cpu_count_logical()
 
 
-if OPENBSD or NETBSD:
+if OPENBSD or SECBSD or NETBSD:
 
     def cpu_count_cores():
         # OpenBSD and NetBSD do not implement this.
@@ -339,7 +340,7 @@ def cpu_stats():
             for line in f:
                 if line.startswith(b'intr'):
                     intrs = int(line.split()[1])
-    elif OPENBSD:
+    elif OPENBSD or SECBSD:
         # Note: the C ext is returning some metrics we are not exposing:
         # traps, faults and forks.
         ctxsw, intrs, soft_intrs, syscalls, traps, faults, forks = (
@@ -374,7 +375,7 @@ if FREEBSD:
             ret.append(_common.scpufreq(current, min_freq, max_freq))
         return ret
 
-elif OPENBSD:
+elif OPENBSD or SECBSD:
 
     def cpu_freq():
         curr = float(cext.cpu_freq())
@@ -450,7 +451,7 @@ def net_connections(kind):
     families, types = conn_tmap[kind]
     ret = set()
 
-    if OPENBSD:
+    if OPENBSD or SECBSD:
         rawlist = cext.net_connections(-1, families, types)
     elif NETBSD:
         rawlist = cext.net_connections(-1, kind)
@@ -525,7 +526,7 @@ def users():
     for item in rawlist:
         user, tty, hostname, tstamp, pid = item
         if pid == -1:
-            assert OPENBSD
+            assert SECBSD
             pid = None
         if tty == '~':
             continue  # reboot or shutdown
@@ -554,14 +555,14 @@ def _pid_0_exists():
 def pids():
     """Returns a list of PIDs currently running on the system."""
     ret = cext.pids()
-    if OPENBSD and (0 not in ret) and _pid_0_exists():
+    if SECBSD and (0 not in ret) and _pid_0_exists():
         # On OpenBSD the kernel does not return PID 0 (neither does
         # ps) but it's actually querable (Process(0) will succeed).
         ret.insert(0, 0)
     return ret
 
 
-if OPENBSD or NETBSD:
+if OPENBSD or SECBSD or NETBSD:
 
     def pid_exists(pid):
         """Return True if pid exists."""
@@ -690,7 +691,7 @@ class Process:
 
     @wrap_exceptions
     def cmdline(self):
-        if OPENBSD and self.pid == 0:
+        if SECBSD and self.pid == 0:
             return []  # ...else it crashes
         elif NETBSD:
             # XXX - most of the times the underlying sysctl() call on
@@ -808,7 +809,7 @@ class Process:
         for thread_id, utime, stime in rawlist:
             ntuple = _common.pthread(thread_id, utime, stime)
             retlist.append(ntuple)
-        if OPENBSD:
+        if SECBSD:
             self._assert_alive()
         return retlist
 
@@ -824,7 +825,7 @@ class Process:
 
         if NETBSD:
             rawlist = cext.net_connections(self.pid, kind)
-        elif OPENBSD:
+        elif SECBSD:
             rawlist = cext.net_connections(self.pid, families, types)
         else:
             rawlist = cext.proc_connections(self.pid, families, types)
@@ -875,7 +876,7 @@ class Process:
         """Return process current working directory."""
         # sometimes we get an empty string, in which case we turn
         # it into None
-        if OPENBSD and self.pid == 0:
+        if SECBSD and self.pid == 0:
             return ""  # ...else it would raise EINVAL
         elif NETBSD or HAS_PROC_OPEN_FILES:
             # FreeBSD < 8 does not support functions based on