diff --git a/addons/portal_project/security/portal_security.xml b/addons/portal_project/security/portal_security.xml
index 8d58ed70aeb..67e57766ebd 100644
--- a/addons/portal_project/security/portal_security.xml
+++ b/addons/portal_project/security/portal_security.xml
@@ -33,27 +33,26 @@
         </record>
 
         <record model="ir.rule" id="project.task_visibility_rule">
-            <field name="name">Project/Task: employees: public, portal, employee or following or assigned</field>
+            <field name="name">Project/Task: employees: public, portal, employee or (followers and following)</field>
             <field name="domain_force">['|',
-                                            ('user_id', '=', user.id),
-                                            '|',
-                                                ('project_id.privacy_visibility', 'in', ['public', 'portal', 'employees']),
-                                                '&amp;',
-                                                    ('project_id.privacy_visibility', '=', 'followers'),
-                                                    ('message_follower_ids', 'in', [user.partner_id.id]),
+                                            ('project_id.privacy_visibility', 'in', ['public', 'portal', 'employees']),
+                                            '&amp;',
+                                                ('project_id.privacy_visibility', '=', 'followers'),
+                                                ('message_follower_ids', 'in', [user.partner_id.id]),
                                         ]</field>
         </record>
 
         <record id="portal_task_rule" model="ir.rule">
-            <field name="name">Project/Task: portal users: public or portal and following</field>
+            <field name="name">Project/Task: portal users: public or (portal and colleagues following) or (followers and following)</field>
             <field name="model_id" ref="project.model_project_task"/>
-            <field name="domain_force">['|',
-                                            ('project_id.privacy_visibility', '=', 'public'),
+            <field name="domain_force">['|', '|',
+                                            ('project_id.privacy_visibility', 'in', ['public']),
                                             '&amp;',
-                                                ('project_id.privacy_visibility', 'in', ['portal', 'followers']),
-                                                '|',
-                                                    ('message_follower_ids','in', [user.partner_id.id]),
-                                                    ('user_id', '=', user.id),
+                                                ('project_id.privacy_visibility', '=', 'portal'),
+                                                ('message_follower_ids', 'child_of', [user.partner_id.commercial_partner_id.id]),
+                                            '&amp;',
+                                                ('project_id.privacy_visibility', '=', 'followers'),
+                                                ('message_follower_ids', 'in', [user.partner_id.id]),
                                         ]</field>
             <field name="groups" eval="[(4, ref('portal.group_portal'))]"/>
         </record>
diff --git a/addons/portal_project_issue/security/portal_security.xml b/addons/portal_project_issue/security/portal_security.xml
index 120611cec0e..598c1620a82 100644
--- a/addons/portal_project_issue/security/portal_security.xml
+++ b/addons/portal_project_issue/security/portal_security.xml
@@ -3,27 +3,27 @@
     <data noupdate="1">
 
         <record id="portal_issue_rule" model="ir.rule">
-            <field name="name">Project/Issue: portal users: public or portal and following</field>
+            <field name="name">Project/Issue: portal users: public or (portal and colleagues following) or (followers and following)</field>
             <field name="model_id" ref="project_issue.model_project_issue"/>
-            <field name="domain_force">[ '&amp;',
-                                             ('project_id.privacy_visibility', 'in', ['public', 'portal', 'followers']),
-                                             '|', '|',
-                                                ('message_follower_ids','in', [user.partner_id.id]),
-                                                ('user_id', '=', user.id),
-                                                ('partner_id', 'child_of', [user.commercial_partner_id.id])
-                                       ]</field>
+            <field name="domain_force">['|', '|',
+                                            ('project_id.privacy_visibility', 'in', ['public']),
+                                            '&amp;',
+                                                ('project_id.privacy_visibility', '=', 'portal'),
+                                                ('message_follower_ids', 'child_of', [user.partner_id.commercial_partner_id.id]),
+                                            '&amp;',
+                                                ('project_id.privacy_visibility', '=', 'followers'),
+                                                ('message_follower_ids', 'in', [user.partner_id.id]),
+                                        ]</field>
             <field name="groups" eval="[(4, ref('portal.group_portal'))]"/>
         </record>
 
         <record model="ir.rule" id="project_issue.issue_user_rule">
-            <field name="name">Project/Issue: employees: public, portal, employee or following or assigned</field>
+            <field name="name">Project/Issue: employees: public, portal, employee or (followers and following)</field>
             <field name="domain_force">['|',
-                                            ('user_id', '=', user.id),
-                                            '|',
-                                                ('project_id.privacy_visibility', 'in', ['public', 'portal', 'employees']),
-                                                '&amp;',
-                                                    ('project_id.privacy_visibility', '=', 'followers'),
-                                                    ('message_follower_ids', 'in', [user.partner_id.id]),
+                                            ('project_id.privacy_visibility', 'in', ['public', 'portal', 'employees']),
+                                            '&amp;',
+                                                ('project_id.privacy_visibility', '=', 'followers'),
+                                                ('message_follower_ids', 'in', [user.partner_id.id]),
                                         ]</field>
         </record>
 
diff --git a/addons/portal_project_long_term/security/portal_security.xml b/addons/portal_project_long_term/security/portal_security.xml
index eab70ebe734..d8aec542847 100644
--- a/addons/portal_project_long_term/security/portal_security.xml
+++ b/addons/portal_project_long_term/security/portal_security.xml
@@ -3,16 +3,9 @@
     <data>
 
         <record id="portal_project_long_term_rule" model="ir.rule">
-            <field name="name">Project/Phase: portal users: public or portal and following</field>
+            <field name="name">Project/Phase: portal users: public or (portal and colleagues following) or (followers and following)</field>
             <field name="model_id" ref="project_long_term.model_project_phase"/>
-            <field name="domain_force">['|',
-                                            ('project_id.privacy_visibility', '=', 'public'),
-                                            '&amp;',
-                                                ('project_id.privacy_visibility', 'in', ['portal', 'followers']),
-                                                '|',
-                                                    ('message_follower_ids','in', [user.partner_id.id]),
-                                                    ('user_id', '=', user.id),
-                                        ]</field>
+            <field name="domain_force">[('project_id.privacy_visibility', 'in', ['public', 'portal'])]</field>
             <field name="groups" eval="[(4, ref('portal.group_portal'))]"/>
         </record>
 
diff --git a/addons/project/project.py b/addons/project/project.py
index 0b99356a9de..f2d80a8ef22 100644
--- a/addons/project/project.py
+++ b/addons/project/project.py
@@ -210,7 +210,7 @@ class project(osv.osv):
 
     def _get_visibility_selection(self, cr, uid, context=None):
         """ Overriden in portal_project to offer more options """
-        return [('public', 'All Users'),
+        return [('public', 'Public'),
                 ('employees', 'Employees Only'),
                 ('followers', 'Followers Only')]
 
@@ -275,7 +275,17 @@ class project(osv.osv):
                                          "with Tasks (or optionally Issues if the Issue Tracker module is installed)."),
         'alias_model': fields.selection(_alias_models, "Alias Model", select=True, required=True,
                                         help="The kind of document created when an email is received on this project's email alias"),
-        'privacy_visibility': fields.selection(_visibility_selection, 'Privacy / Visibility', required=True),
+        'privacy_visibility': fields.selection(_visibility_selection, 'Privacy / Visibility', required=True,
+            help="Holds visibility of the tasks or issues that belong to the current project:\n"
+                    "- Public: everybody sees everything; if portal is activated, portal users\n"
+                    "   see all tasks or issues; if anonymous portal is activated, visitors\n"
+                    "   see all tasks or issues\n"
+                    "- Portal (only available if Portal is installed): employees see everything;\n"
+                    "   if portal is activated, portal users see the tasks or issues followed by\n"
+                    "   them or by someone of their company\n"
+                    "- Employees Only: employees see all tasks or issues\n"
+                    "- Followers Only: employees see only the followed tasks or issues; if portal\n"
+                    "   is activated, portal users see the followed tasks or issues."),
         'state': fields.selection([('template', 'Template'),('draft','New'),('open','In Progress'), ('cancelled', 'Cancelled'),('pending','Pending'),('close','Closed')], 'Status', required=True,),
         'doc_count':fields.function(_get_attached_docs, string="Number of documents attached", type='int')
      }
diff --git a/addons/project/security/project_security.xml b/addons/project/security/project_security.xml
index 4bbaa9b788e..e674019443b 100644
--- a/addons/project/security/project_security.xml
+++ b/addons/project/security/project_security.xml
@@ -75,15 +75,13 @@
     </record>
 
     <record model="ir.rule" id="task_visibility_rule">
-        <field name="name">Project/Task: employees: public or employee or following or assigned</field>
+        <field name="name">Project/Task: employees: public or employee or (followers and following)</field>
         <field name="model_id" ref="model_project_task"/>
         <field name="domain_force">['|',
-                                        ('user_id', '=', user.id),
-                                        '|',
-                                            ('project_id.privacy_visibility', 'in', ['public', 'employees']),
-                                            '&amp;',
-                                                ('project_id.privacy_visibility', '=', 'followers'),
-                                                ('message_follower_ids', 'in', [user.partner_id.id]),
+                                        ('project_id.privacy_visibility', 'in', ['public', 'employees']),
+                                        '&amp;',
+                                            ('project_id.privacy_visibility', '=', 'followers'),
+                                            ('message_follower_ids', 'in', [user.partner_id.id]),
                                     ]</field>
         <field name="groups" eval="[(4,ref('base.group_user'))]"/>
     </record>
diff --git a/addons/project_issue/security/project_issue_security.xml b/addons/project_issue/security/project_issue_security.xml
index 5215a94a8b7..c8ed12086e4 100644
--- a/addons/project_issue/security/project_issue_security.xml
+++ b/addons/project_issue/security/project_issue_security.xml
@@ -10,15 +10,13 @@
         </record>
 
         <record model="ir.rule" id="issue_user_rule">
-            <field name="name">Project/Issue: employees: public or employee or following or assigned</field>
+            <field name="name">Project/Issue: employees: public or employee or (followers and following)</field>
             <field name="model_id" ref="model_project_issue"/>
             <field name="domain_force">['|',
-                                            '|',
-                                                ('project_id.privacy_visibility', 'in', ['public', 'employees']),
-                                                '&amp;',
-                                                    ('project_id.privacy_visibility', '=', 'followers'),
-                                                    ('message_follower_ids', 'in', [user.id]),
-                                            ('user_id', '=', user.id),
+                                            ('project_id.privacy_visibility', 'in', ['public', 'employees']),
+                                            '&amp;',
+                                                ('project_id.privacy_visibility', '=', 'followers'),
+                                                ('message_follower_ids', 'in', [user.id]),
                                         ]</field>
             <field name="groups" eval="[(4,ref('base.group_user'))]"/>
         </record>