diff --git a/browser/common.py b/browser/common.py
index 42f648f..d62cf77 100644
--- a/browser/common.py
+++ b/browser/common.py
@@ -60,7 +60,7 @@ from cybertools.typology.interfaces import IType, ITypeManager
 from loops.common import adapted
 from loops.config.base import DummyOptions
 from loops.i18n.browser import I18NView
-from loops.interfaces import IResource, IView, INode
+from loops.interfaces import IResource, IView, INode, ITypeConcept
 from loops.organize.tracking import access
 from loops.resource import Resource
 from loops.security.common import canAccessObject, canListObject, canWriteObject
@@ -413,6 +413,8 @@ class BaseView(GenericView, I18NView):
 
     @Lazy
     def options(self):
+        if ITypeConcept.providedBy(self.adapted):
+            return DummyOptions()
         return component.queryAdapter(self.adapted, IOptions) or DummyOptions()
 
     @Lazy
diff --git a/compound/blog/configure.zcml b/compound/blog/configure.zcml
index b73d492..009827b 100644
--- a/compound/blog/configure.zcml
+++ b/compound/blog/configure.zcml
@@ -12,6 +12,8 @@
   <zope:class class="loops.compound.blog.post.BlogPost">
     <require permission="zope.View"
         interface="loops.compound.blog.interfaces.IBlogPost" />
+    <require permission="zope.View"
+        attributes="context" />
     <require permission="zope.ManageContent"
         set_schema="loops.compound.blog.interfaces.IBlogPost" />
   </zope:class>
diff --git a/compound/blog/security.py b/compound/blog/security.py
index 7869808..aff9715 100644
--- a/compound/blog/security.py
+++ b/compound/blog/security.py
@@ -43,24 +43,27 @@ class BlogPostSecuritySetter(BaseSecuritySetter):
     def setDefaultPrincipalRoles(self):
         assignOwner(self.context.context, self.principalId)
 
-    def setAcquiredRolePermissions(self, relation, revert=False):
-        if isAcquiring(relation.predicate):
+    def setAcquiredSecurity(self, relation, revert=False):
+        #if self.isAcquiring(relation.predicate):
+        if relation.predicate in self.acquiringPredicates:
             allowEditingForOwner(relation.second, revert=revert)
             if self.context.private:
                 restrictView(relation.second, revert=revert)
-
-    def setAcquiredPrincipalRoles(self, relation, revert=False):
-        if isAcquiring(relation.predicate):
             if revert:
                 removeOwner(relation.second, self.principalId)
             else:
                 assignOwner(relation.second, self.principalId)
 
+    @Lazy
+    def acquiringPredicates(self):
+        names = ('ispartof',)
+        return [self.conceptManager.get(n) for n in names]
+
     @Lazy
     def principalId(self):
         return getCurrentPrincipal().id
 
 
 def isAcquiring(predicate):
-    # TODO: use a predicate property for this.
+    # TODO: use a predicate option for this.
     return getName(predicate) in ('ispartof',)
diff --git a/interfaces.py b/interfaces.py
index fb0f059..554fe60 100644
--- a/interfaces.py
+++ b/interfaces.py
@@ -271,11 +271,6 @@ class IBaseResource(ILoopsObject):
         source="loops.resourceTypeSource",
         required=False)
 
-    def getType():
-        """ Return a concept that provides the object's type, i.e. the
-            resourceType attribute.
-        """
-
     data = schema.Bytes(
                 title=_(u'Data'),
                 description=_(u'Resource raw data'),
@@ -290,6 +285,38 @@ class IBaseResource(ILoopsObject):
                 missing_value='',
                 required=False)
 
+    def getType():
+        """ Return a concept that provides the object's type, i.e. the
+            resourceType attribute.
+        """
+
+    def getClients(relationships=None):
+        """ Return a sequence of objects that the resource is the target of.
+        """
+
+    def getConcepts(predicates=None):
+        """ Return a tuple of concepts related to self as parent concepts,
+            optionally restricted to the predicates given.
+        """
+
+    def getConceptRelations(predicates=None, concepts=None):
+        """ Return a sequence of relations to concepts assigned to self
+            as parent concepts, optionally restricted to the predicates given
+            or to a certain concept.
+        """
+
+    def assignConcept(concept, predicate):
+        """ Assign an existing concept to self using the predicate given.
+            The assigned concept will be a parent concept of self.
+
+            The predicate defaults to the concept manager's default predicate.
+        """
+
+    def deassignConcept(concept, predicates=None):
+        """ Remove the concept relations to the concept given from self,
+            optionally restricting them to the predicates given.
+        """
+
 
 class IBaseResourceSchema(Interface):
     """ New schema for resources; to be used by sub-interfaces that will
@@ -334,33 +361,6 @@ class IResource(ILoopsObject, IPotentialTarget):
         available via a view or a concept.
     """
 
-    def getClients(relationships=None):
-        """ Return a sequence of objects that the resource is the target of.
-        """
-
-    def getConcepts(predicates=None):
-        """ Return a tuple of concepts related to self as parent concepts,
-            optionally restricted to the predicates given.
-        """
-
-    def getConceptRelations(predicates=None, concepts=None):
-        """ Return a sequence of relations to concepts assigned to self
-            as parent concepts, optionally restricted to the predicates given
-            or to a certain concept.
-        """
-
-    def assignConcept(concept, predicate):
-        """ Assign an existing concept to self using the predicate given.
-            The assigned concept will be a parent concept of self.
-
-            The predicate defaults to the concept manager's default predicate.
-        """
-
-    def deassignConcept(concept, predicates=None):
-        """ Remove the concept relations to the concept given from self,
-            optionally restricting them to the predicates given.
-        """
-
 
 class IDocumentSchema(IResourceSchema):
 
diff --git a/organize/browser/configure.zcml b/organize/browser/configure.zcml
index 8c122eb..457837f 100644
--- a/organize/browser/configure.zcml
+++ b/organize/browser/configure.zcml
@@ -25,13 +25,13 @@
       for="loops.interfaces.INode"
       name="register_user.html"
       class="loops.organize.browser.member.MemberRegistration"
-      permission="zope.Public" />
+      permission="zope.View" />
 
   <browser:page
       for="loops.interfaces.INode"
       name="change_password.html"
       class="loops.organize.browser.member.PasswordChange"
-      permission="zope.Public" />
+      permission="zope.View" />
 
   <zope:adapter
       name="task.html"
diff --git a/organize/util.py b/organize/util.py
index 6cabe26..43558d6 100644
--- a/organize/util.py
+++ b/organize/util.py
@@ -59,6 +59,11 @@ def getGroupsFolder(context=None, name='gloops'):
     return getPrincipalFolder(authPluginId=name, ignoreErrors=True)
 
 
+def getGroupId(group):
+    gf = group.__parent__
+    return ''.join((gf.__parent__.prefix, gf._groupid(group)))
+
+
 def getInternalPrincipal(id, context=None, pau=None):
     if pau is None:
         pau = component.getUtility(IAuthentication, context=context)
diff --git a/security/browser.py b/security/browser.py
index af9bb6c..7846b96 100644
--- a/security/browser.py
+++ b/security/browser.py
@@ -50,9 +50,8 @@ class Granting(granting.Granting):
     def status(self):
         value = super(Granting, self).status()
         if value:
-            setter = ISecuritySetter(adapted(self.context), None)
-            if setter is not None:
-                setter.propagatePrincipalRoles()
+            setter = ISecuritySetter(adapted(self.context))
+            setter.propagateSecurity()
         return value
 
 
@@ -99,9 +98,8 @@ class PermissionView(object):
     def update(self, testing=None):
         value = self.delegate.update(testing)
         if value:
-            setter = ISecuritySetter(self.adapted, None)
-            if setter is not None:
-                setter.propagateRolePermissions()
+            setter = ISecuritySetter(self.adapted)
+            setter.propagateSecurity()
         return value
 
     @Lazy
diff --git a/security/common.py b/security/common.py
index a155d50..8b1c11c 100644
--- a/security/common.py
+++ b/security/common.py
@@ -97,6 +97,14 @@ def setRolePermission(rpm, p, r, setting):
     else:
         rpm.unsetPermissionFromRole(p, r)
 
+def setPrincipalRole(prm, r, p, setting):
+    if setting == Allow:
+        prm.assignRoleToPrincipal(r, p)
+    elif setting == Deny:
+        prm.removeRoleFromPrincipal(r, p)
+    else:
+        prm.unsetRoleForPrincipal(r, p)
+
 
 def assignOwner(obj, principalId):
     prm = IPrincipalRoleManager(obj)
@@ -137,24 +145,21 @@ def restrictView(obj, roles=allRolesExceptOwnerAndMaster, revert=False):
 def setDefaultSecurity(obj, event):
     aObj = adapted(obj)
     setter = ISecuritySetter(aObj)
-    setter.setDefaultRolePermissions()
-    setter.setDefaultPrincipalRoles()
+    setter.setDefaultSecurity()
 
 
 @component.adapter(IConcept, IAssignmentEvent)
 def grantAcquiredSecurity(obj, event):
     aObj = adapted(obj)
     setter = ISecuritySetter(aObj)
-    setter.setAcquiredRolePermissions(event.relation)
-    setter.setAcquiredPrincipalRoles(event.relation)
+    setter.setAcquiredSecurity(event.relation)
 
 
 @component.adapter(IConcept, IDeassignmentEvent)
 def revokeAcquiredSecurity(obj, event):
     aObj = adapted(obj)
     setter = ISecuritySetter(aObj)
-    setter.setAcquiredRolePermissions(event.relation, revert=True)
-    setter.setAcquiredPrincipalRoles(event.relation, revert=True)
+    setter.setAcquiredSecurity(event.relation, revert=True)
 
 
 # helper stuff
@@ -168,12 +173,12 @@ class WorkspaceInformation(Persistent):
 
     __name__ = u'workspace_information'
 
-    propagatePrincipalRoles = False
     propagateRolePermissions = 'workspace'
 
     def __init__(self, parent):
         self.__parent__ = parent
-        self.workspaceGroups = PersistentList()
+        self.workspaceGroupNames = PersistentList()
 
     def getName(self):
         return self.__name__
+
diff --git a/security/interfaces.py b/security/interfaces.py
index 99a1392..02d329a 100644
--- a/security/interfaces.py
+++ b/security/interfaces.py
@@ -30,6 +30,11 @@ from loops.util import _
 
 class ISecuritySetter(Interface):
 
+    def setDefaultSecurity():
+        """ Set some default role permission assignments (grants) on the
+            context object.
+        """
+
     def setDefaultRolePermissions():
         """ Set some default role permission assignments (grants) on the
             context object.
@@ -40,46 +45,31 @@ class ISecuritySetter(Interface):
             (e.g. the user that created the object).
         """
 
-    def acquireRolePermissions():
+    def acquireRolePermissions(revert=False):
         """ Check (immediate) parents's settings and set role permission
             assignments on the context object accordingly.
         """
 
-    def setAcquiredRolePermissions(relation, revert=False, updated=None):
+    def setAcquiredSecurity(relation, revert=False, updated=None):
         """ Grant role permissions on children/resources for the relation given.
 
             If the ``revert`` argument is true unset the corresponding settings.
             Do not update objects in the ``updated`` collection if present.
         """
 
-    def setAcquiredPrincipalRoles(relation, revert=False, updated=None):
-        """ Assign roles on children/resources for the relation given.
-
-            If the ``revert`` argument is true unset the corresponding settings.
-            Do not update objects in the ``updated`` collection if present.
-        """
-
-    def propagateRolePermissions(updated=None):
+    def propagateSecurity(revert=False, updated=None):
         """ Update role permissions on all sub-objects according to the
             current setting of the context object.
 
             Ignore objects in the ``updated`` collection if present.
         """
 
-    def propagatePrincipalRoles(updated=None):
-        """ Update roles on all sub-objects according to the
-            current setting of the context object.
-
-            Ignore objects in the ``updated`` collection if present.
-        """
-
 
 class IWorkspaceInformation(Interface):
     """ Additional information belonging to a concept that controls
         security-related stuff for sub-objects.
     """
 
-    propagatePrincipalRoles = Attribute('Should acquired principal roles be '
-                    'propagated to children?')
     propagateRolePermissions = Attribute('Which role permissions should be '
                     'propagated to children?')
+
diff --git a/security/setter.py b/security/setter.py
index 9a38ab2..5fb9cbc 100644
--- a/security/setter.py
+++ b/security/setter.py
@@ -24,16 +24,18 @@ $Id$
 """
 
 from zope.app.security.settings import Allow, Deny, Unset
-from zope.app.securitypolicy.interfaces import IRolePermissionMap
-from zope.app.securitypolicy.interfaces import IRolePermissionManager
+from zope.app.securitypolicy.interfaces import \
+                    IRolePermissionMap, IRolePermissionManager, \
+                    IPrincipalRoleMap, IPrincipalRoleManager
 from zope import component
 from zope.component import adapts
 from zope.cachedescriptors.property import Lazy
 from zope.interface import implements, Interface
 from zope.security.proxy import isinstance
 
-from loops.common import adapted, AdapterBase
-from loops.security.common import overrides, setRolePermission
+from loops.common import adapted, AdapterBase, baseObject
+from loops.organize.util import getPrincipalFolder, getGroupsFolder, getGroupId
+from loops.security.common import overrides, setRolePermission, setPrincipalRole
 from loops.interfaces import IConceptSchema, IBaseResourceSchema, ILoopsAdapter
 from loops.security.interfaces import ISecuritySetter
 
@@ -46,25 +48,39 @@ class BaseSecuritySetter(object):
     def __init__(self, context):
         self.context = context
 
+    @Lazy
+    def baseObject(self):
+        return baseObject(self.context)
+
+    @Lazy
+    def conceptManager(self):
+        return self.baseObject.getLoopsRoot().getConceptManager()
+
+    @Lazy
+    def acquiringPredicates(self):
+        names = ('hasType', 'standard',)
+        return [self.conceptManager.get(n) for n in names]
+
     def setDefaultRolePermissions(self):
         pass
 
     def setDefaultPrincipalRoles(self):
         pass
 
+    def setDefaultSecurity(self):
+        self.setDefaultRolePermissions()
+        self.setDefaultPrincipalRoles()
+
+    def setAcquiredSecurity(self, relation, revert=False, updated=None):
+        pass
+
+    def propagateSecurity(self, revert=False, updated=None):
+        pass
+
     def acquireRolePermissions(self):
         pass
 
-    def setAcquiredRolePermissions(self, relation, revert=False, updated=None):
-        pass
-
-    def setAcquiredPrincipalRoles(self, relation, revert=False, updated=None):
-        pass
-
-    def propagateRolePermissions(self, updated=None):
-        pass
-
-    def propagatePrincipalRoles(self, updated=None):
+    def copyPrincipalRoles(self, source, revert=False):
         pass
 
 
@@ -72,17 +88,21 @@ class LoopsObjectSecuritySetter(BaseSecuritySetter):
 
     parents = []
 
-    @Lazy
-    def baseObject(self):
-        obj = self.context
-        if isinstance(obj, AdapterBase):
-            obj = obj.context
-        return obj
-
     @Lazy
     def rolePermissionManager(self):
         return IRolePermissionManager(self.baseObject)
 
+    @Lazy
+    def principalRoleManager(self):
+        return IPrincipalRoleManager(self.baseObject)
+
+    @Lazy
+    def workspacePrincipals(self):
+        gFolder = getGroupsFolder(self.baseObject, 'gloops_ws')
+        if gFolder is None:
+            return []
+        return [getGroupId(g) for g in gFolder.values()]
+
     def setDefaultRolePermissions(self):
         rpm = self.rolePermissionManager
         for p, r, s in rpm.getRolesAndPermissions():
@@ -109,38 +129,44 @@ class LoopsObjectSecuritySetter(BaseSecuritySetter):
         for (p, r), s in settings.items():
             setRolePermission(self.rolePermissionManager, p, r, s)
 
+    def copyPrincipalRoles(self, source, revert=False):
+        prm = IPrincipalRoleMap(baseObject(source.context))
+        for r, p, s in prm.getPrincipalsAndRoles():
+            if p in self.workspacePrincipals:
+                if revert:
+                    setPrincipalRole(self.principalRoleManager, r, p, Unset)
+                else:
+                    setPrincipalRole(self.principalRoleManager, r, p, s)
+
 
 class ConceptSecuritySetter(LoopsObjectSecuritySetter):
 
     adapts(IConceptSchema)
 
-    def setAcquiredRolePermissions(self, relation, revert=False, updated=None):
+    def setAcquiredSecurity(self, relation, revert=False, updated=None):
         if updated and relation.second in updated:
             return
-        setter = ISecuritySetter(adapted(relation.second), None)
-        if setter is not None:
-            setter.acquireRolePermissions()
-            setter.propagateRolePermissions(updated)
+        if relation.predicate not in self.acquiringPredicates:
+            return
+        setter = ISecuritySetter(adapted(relation.second))
+        setter.setDefaultRolePermissions()
+        setter.acquireRolePermissions()
+        setter.copyPrincipalRoles(self, revert)
+        setter.propagateSecurity(revert, updated)
 
-    def setAcquiredPrincipalRoles(self, relation, revert=False, updated=None):
-        pass
-
-    def propagateRolePermissions(self, updated=None):
+    def propagateSecurity(self, revert=False, updated=None):
         if updated is None:
             updated = set()
         obj = self.baseObject
         updated.add(obj)
-        for r in obj.getChildRelations():
-            self.setAcquiredRolePermissions(r, updated=updated)
-        for r in obj.getResourceRelations():
-            self.setAcquiredRolePermissions(r, updated=updated)
-
-    def propagatePrincipalRoles(self, updated=None):
-        pass
+        for r in obj.getChildRelations(self.acquiringPredicates):
+            self.setAcquiredSecurity(r, revert, updated)
+        for r in obj.getResourceRelations(self.acquiringPredicates):
+            self.setAcquiredSecurity(r, revert, updated)
 
     @Lazy
     def parents(self):
-        return self.baseObject.getParents()
+        return self.baseObject.getParents(self.acquiringPredicates)
 
 
 class ResourceSecuritySetter(LoopsObjectSecuritySetter):
@@ -149,5 +175,5 @@ class ResourceSecuritySetter(LoopsObjectSecuritySetter):
 
     @Lazy
     def parents(self):
-        return self.baseObject.getConcepts()
+        return self.baseObject.getConcepts(self.acquiringPredicates)
 
diff --git a/xmlrpc/README.txt b/xmlrpc/README.txt
index e513779..ccd907d 100755
--- a/xmlrpc/README.txt
+++ b/xmlrpc/README.txt
@@ -52,13 +52,13 @@ domain concept (if present, otherwise the top-level type concept):
   ['children', 'description', 'id', 'name', 'parents', 'resources',
    'title', 'type', 'viewName']
   >>> startObj['id'], startObj['name'], startObj['title'], startObj['type']
-  ('3', u'domain', u'Domain', '0')
+  ('4', u'domain', u'Domain', '0')
 
 There are a few standard objects we can retrieve directly:
 
   >>> defaultPred = xrf.getDefaultPredicate()
   >>> defaultPred['id'], defaultPred['name']
-  ('14', u'standard')
+  ('3', u'standard')
   >>> typePred = xrf.getTypePredicate()
   >>> typePred['id'], typePred['name']
   ('1', u'hasType')
@@ -78,12 +78,12 @@ applied in an explicit assignment.
 
 We can also retrieve a certain object by its id or its name:
 
-  >>> obj2 = xrf.getObjectById('5')
+  >>> obj2 = xrf.getObjectById('4')
   >>> obj2['id'], obj2['name']
-  ('5', u'note')
+  ('4', u'domain')
   >>> textdoc = xrf.getObjectByName(u'textdocument')
   >>> textdoc['id'], textdoc['name']
-  ('9', u'textdocument')
+  ('10', u'textdocument')
 
 All methods that retrieve one object also returns its children and parents:
 
@@ -115,7 +115,7 @@ We can also retrieve children and parents explicitely:
   [u'customer', u'domain', u'file', u'note', u'person', u'predicate',
    u'task', u'textdocument', u'topic', u'type']
 
-  >>> pa = xrf.getParents('7')
+  >>> pa = xrf.getParents('6')
   >>> len(pa)
   1
   >>> pa[0]['name']