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Crazy like a Fox
#Infosec	
  Ideas	
  that	
  Just	
  Might	
  Work™	
  
@jschauma	
  
Think differently.
Use	
  an	
  adverb	
  to	
  describe	
  our	
  mental	
  
process	
  correct.	
  
@jschauma	
  
Get pwned. Hard.
@jschauma	
  
Get pwned. Hard.
@jschauma	
  
(Then	
  blame	
  APT.)	
  
Pay outside consultants to tell you
what you already
know.
@jschauma	
  
Pay outside consultants to tell you
what you already
know.
@jschauma	
  
If	
  they	
  come	
  up	
  with	
  other	
  ideas,	
  
one	
  of	
  you	
  is	
  likely	
  wrong.	
  Figure	
  out	
  who.	
  
	
  
mount	
  -­‐o	
  noexec,nosuid,nodev	
  /home	
  
mount	
  -­‐o	
  noexec,nosuid,nodev	
  /tmp	
  
…	
  
@jschauma	
  
mount –o ro /
Just because Microsoft
does it, doesn’t
necessarily
mean it’s
terrible.
I	
  <3	
  
Kerberos.	
   @jschauma	
  
Forget Network ACLs.
@jschauma	
  
Forget Network ACLs.
@jschauma	
  
You’ve	
  been	
  pwned	
  
already.	
  
root ssh for everybody!
@jschauma	
  
root ssh for everybody!
Most	
  frequently	
  executed	
  sudo(8)	
  commands?	
  
Survey	
  says:	
  bash(1),	
  su(1)	
  
@jschauma	
  
No login for you!
Come back…
never!
Sorry,	
  not	
  a	
  fox.	
   @jschauma	
  
Reboot, refresh, repeat.
@jschauma	
  
What	
  could	
  possibly	
  happen?	
  
Security	
  
is	
  everybody’s	
  
responsibility.	
  
@jschauma	
  
Embrace “cyber”.
It’s	
  YUGE.	
  
@jschauma	
  
@jschauma	
  
Focus
@jschauma	
  
Focus
Srsly.	
  
	
   Stop.	
  
Doing.	
  
Unimportant.	
  
Shit.	
  
Think differently.
•  Get	
  pwned.	
  Hard.	
  (Then	
  blame	
  APT.)	
  
•  Pay	
  consultants	
  to	
  tell	
  you	
  what	
  you	
  already	
  know.	
  
•  Learn	
  from	
  Microso].	
  (Don’t	
  reimplement	
  Kerberos.)	
  
•  mount	
  –o	
  ro	
  /;	
  mount	
  –o	
  nosuid,noexec,nodev	
  /home	
  
•  Forget	
  ACLs.	
  (You’re	
  already	
  pwned.)	
  
•  root	
  ssh	
  for	
  everybody!	
  
•  No	
  logins	
  whatsoever.	
  (User	
  login	
  =>	
  reimage.)	
  
•  Auto-­‐reboot	
  and	
  auto-­‐update	
  regularly.	
  
•  Make	
  security	
  everybody’s	
  job.	
  
•  Embrace	
  “cyber”.	
  
@jschauma	
  
Focus.
@jschauma	
  
Think differently.
Focus.
•  Get	
  pwned.	
  Hard.	
  (Then	
  blame	
  APT.)	
  
•  Pay	
  consultants	
  to	
  tell	
  you	
  what	
  you	
  already	
  know.	
  
•  Learn	
  from	
  Microso].	
  (Don’t	
  reimplement	
  Kerberos.)	
  
•  mount	
  –o	
  ro	
  /;	
  mount	
  –o	
  nosuid,noexec,nodev	
  /home	
  
•  Forget	
  ACLs.	
  (You’re	
  already	
  pwned.)	
  
•  root	
  ssh	
  for	
  everybody!	
  
•  No	
  logins	
  whatsoever.	
  (User	
  login	
  =>	
  reimage.)	
  
•  Auto-­‐reboot	
  and	
  auto-­‐update	
  regularly.	
  
•  Make	
  security	
  everybody’s	
  job.	
  
•  Embrace	
  “cyber”.	
  

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Crazy Like A Fox - #Infosec Ideas That Just Might Work

  • 1. Crazy like a Fox #Infosec  Ideas  that  Just  Might  Work™   @jschauma  
  • 2. Think differently. Use  an  adverb  to  describe  our  mental   process  correct.   @jschauma  
  • 4. Get pwned. Hard. @jschauma   (Then  blame  APT.)  
  • 5. Pay outside consultants to tell you what you already know. @jschauma  
  • 6. Pay outside consultants to tell you what you already know. @jschauma   If  they  come  up  with  other  ideas,   one  of  you  is  likely  wrong.  Figure  out  who.    
  • 7. mount  -­‐o  noexec,nosuid,nodev  /home   mount  -­‐o  noexec,nosuid,nodev  /tmp   …   @jschauma   mount –o ro /
  • 8. Just because Microsoft does it, doesn’t necessarily mean it’s terrible. I  <3   Kerberos.   @jschauma  
  • 10. Forget Network ACLs. @jschauma   You’ve  been  pwned   already.  
  • 11. root ssh for everybody! @jschauma  
  • 12. root ssh for everybody! Most  frequently  executed  sudo(8)  commands?   Survey  says:  bash(1),  su(1)   @jschauma  
  • 13. No login for you! Come back… never! Sorry,  not  a  fox.   @jschauma  
  • 14. Reboot, refresh, repeat. @jschauma   What  could  possibly  happen?  
  • 15. Security   is  everybody’s   responsibility.   @jschauma  
  • 18. @jschauma   Focus Srsly.     Stop.   Doing.   Unimportant.   Shit.  
  • 19. Think differently. •  Get  pwned.  Hard.  (Then  blame  APT.)   •  Pay  consultants  to  tell  you  what  you  already  know.   •  Learn  from  Microso].  (Don’t  reimplement  Kerberos.)   •  mount  –o  ro  /;  mount  –o  nosuid,noexec,nodev  /home   •  Forget  ACLs.  (You’re  already  pwned.)   •  root  ssh  for  everybody!   •  No  logins  whatsoever.  (User  login  =>  reimage.)   •  Auto-­‐reboot  and  auto-­‐update  regularly.   •  Make  security  everybody’s  job.   •  Embrace  “cyber”.   @jschauma   Focus.
  • 20. @jschauma   Think differently. Focus. •  Get  pwned.  Hard.  (Then  blame  APT.)   •  Pay  consultants  to  tell  you  what  you  already  know.   •  Learn  from  Microso].  (Don’t  reimplement  Kerberos.)   •  mount  –o  ro  /;  mount  –o  nosuid,noexec,nodev  /home   •  Forget  ACLs.  (You’re  already  pwned.)   •  root  ssh  for  everybody!   •  No  logins  whatsoever.  (User  login  =>  reimage.)   •  Auto-­‐reboot  and  auto-­‐update  regularly.   •  Make  security  everybody’s  job.   •  Embrace  “cyber”.