Tenant shares wireless connection.

I found out my wife gave our tenant the wireless encrypted password
and ssid so he can use his laptop via our wireless Linksys router. I
was pissed, but it's already been done. What steps can i take, if any
to prevent any hacking? I playing devil's advocate and assuming this
may happen. He's a nice college kid, but you never know. Am i
vulnerable only with my wireless laptop or is my hardwired pc
vulnerable too? Would disabling ssid broadcast help?

On Wed, 15 Apr 2009 21:17:47 -0700 (PDT),
"(E-Mail Removed)" <(E-Mail Removed)>
wrote:

> I found out my wife gave our tenant the wireless encrypted password
>and ssid so he can use his laptop via our wireless Linksys router. I
>was pissed, but it's already been done. What steps can i take, if any
>to prevent any hacking?

Change the password, and use WPA2 encryption, if available. WPA is
also good, but WEP is broken.

>I playing devil's advocate and assuming this
>may happen. He's a nice college kid, but you never know. Am i
>vulnerable only with my wireless laptop or is my hardwired pc
>vulnerable too? Would disabling ssid broadcast help?

Assuming your hardwired PC is on the same LAN and file sharing is
enabled, then yes, the hardwired PC is also vulnerable, to an extent.
Disabling the SSID broadcast doesn't buy you anything. Change the
password and keep it safe.

In news:a944e0dc-9a53-4fbe-aab1-(E-Mail Removed)
"(E-Mail Removed)" <(E-Mail Removed)> wrote:

> What steps can i take, if any to prevent any hacking?

Change the pass phrase.

--
Bert Hyman St. Paul, MN (E-Mail Removed)

Jeff Liebermann <(E-Mail Removed)> wrote:

> On Wed, 15 Apr 2009 21:17:47 -0700 (PDT),
> "(E-Mail Removed)" <(E-Mail Removed)>
> wrote:
>
> > I found out my wife gave our tenant the wireless encrypted password
> >and ssid so he can use his laptop via our wireless Linksys router. I
> >was pissed, but it's already been done. What steps can i take, if any
> >to prevent any hacking? I playing devil's advocate and assuming this
> >may happen. He's a nice college kid, but you never know. Am i
> >vulnerable only with my wireless laptop or is my hardwired pc
> >vulnerable too? Would disabling ssid broadcast help?
>
> Maker and model of the wireless router?

"...our wireless Linksys router."

Linksys?

Do Linksys routers have L2 isolation, like my Trendnet TEW-510APB?

Would that help in a case like this?

The TEW-510APB is an acccess point.

On Apr 15, 9:53*pm, Char Jackson <n...@none.invalid> wrote:
> On Wed, 15 Apr 2009 21:17:47 -0700 (PDT),
> "shareyourknowle...@hotmail.com" <shareyourknowle...@hotmail.com>
> wrote:
>
> > I found out my wife gave our tenant the wireless encrypted password
> >and ssid so he can use his laptop via our wireless Linksys router. *I
> >was pissed, but it's already been done. What steps can i take, if any
> >to prevent any hacking?
>
> Change the password, and use WPA2 encryption, if available. WPA is
> also good, but WEP is broken.
>
> >I playing devil's advocate and assuming this
> >may happen. He's a nice college kid, but you never know. Am i
> >vulnerable only with my wireless laptop or is my hardwired pc
> >vulnerable too? Would disabling ssid broadcast help?
>
> Assuming your hardwired PC is on the same LAN and file sharing is
> enabled, then yes, the hardwired PC is also vulnerable, to an extent.
> Disabling the SSID broadcast doesn't buy you anything. Change the
> password and keep it safe.

Thanks for you replies. Doesn't the tenant need a password to access
the internet though? He told my wife he couldn't connect to the
internet so she gave him the password.I have the Linksys WRT54G. I
think there is WPA2 encryption availability. I thought i read that
WPA2 encrytpion has limitations. yes? I'll check into the guest
wirelss connection.

On Thu, 16 Apr 2009 07:30:41 -0700 (PDT),
"(E-Mail Removed)" <(E-Mail Removed)>
wrote:

>On Apr 15, 9:53*pm, Char Jackson <n...@none.invalid> wrote:
>> On Wed, 15 Apr 2009 21:17:47 -0700 (PDT),
>> "shareyourknowle...@hotmail.com" <shareyourknowle...@hotmail.com>
>> wrote:
>>
>> > I found out my wife gave our tenant the wireless encrypted password
>> >and ssid so he can use his laptop via our wireless Linksys router. *I
>> >was pissed, but it's already been done. What steps can i take, if any
>> >to prevent any hacking?
>>
>> Change the password, and use WPA2 encryption, if available. WPA is
>> also good, but WEP is broken.
>>
>> >I playing devil's advocate and assuming this
>> >may happen. He's a nice college kid, but you never know. Am i
>> >vulnerable only with my wireless laptop or is my hardwired pc
>> >vulnerable too? Would disabling ssid broadcast help?
>>
>> Assuming your hardwired PC is on the same LAN and file sharing is
>> enabled, then yes, the hardwired PC is also vulnerable, to an extent.
>> Disabling the SSID broadcast doesn't buy you anything. Change the
>> password and keep it safe.
>
>Thanks for you replies. Doesn't the tenant need a password to access
>the internet though?

No, he needed a password to access your LAN. Once he had access to
your LAN, he automatically had access to the Internet, just like you
do from your LAN.

>He told my wife he couldn't connect to the
>internet so she gave him the password.I have the Linksys WRT54G. I
>think there is WPA2 encryption availability. I thought i read that
>WPA2 encrytpion has limitations. yes? I'll check into the guest
>wirelss connection.

The only WPA2 limitation I'm aware of is that some very old wireless
cards don't support it, but if all of your wireless equipment does,
then I would recommend it.

On Apr 16, 8:15*am, Char Jackson <n...@none.invalid> wrote:
> On Thu, 16 Apr 2009 07:30:41 -0700 (PDT),
> "shareyourknowle...@hotmail.com" <shareyourknowle...@hotmail.com>
> wrote:
>
>
>
>
>
> >On Apr 15, 9:53*pm, Char Jackson <n...@none.invalid> wrote:
> >> On Wed, 15 Apr 2009 21:17:47 -0700 (PDT),
> >> "shareyourknowle...@hotmail.com" <shareyourknowle...@hotmail.com>
> >> wrote:
>
> >> > I found out my wife gave our tenant the wireless encrypted password
> >> >and ssid so he can use his laptop via our wireless Linksys router. *I
> >> >was pissed, but it's already been done. What steps can i take, if any
> >> >to prevent any hacking?
>
> >> Change the password, and use WPA2 encryption, if available. WPA is
> >> also good, but WEP is broken.
>
> >> >I playing devil's advocate and assuming this
> >> >may happen. He's a nice college kid, but you never know. Am i
> >> >vulnerable only with my wireless laptop or is my hardwired pc
> >> >vulnerable too? Would disabling ssid broadcast help?
>
> >> Assuming your hardwired PC is on the same LAN and file sharing is
> >> enabled, then yes, the hardwired PC is also vulnerable, to an extent.
> >> Disabling the SSID broadcast doesn't buy you anything. Change the
> >> password and keep it safe.
>
> >Thanks for you replies. Doesn't the tenant need a password to access
> >the internet though?
>
> No, he needed a password to access your LAN. Once he had access to
> your LAN, he automatically had access to the Internet, just like you
> do from your LAN.
>
> >He told my wife he couldn't connect to the
> >internet so she gave him the password.I have the Linksys WRT54G. I
> >think there is WPA2 encryption availability. I thought i read that
> >WPA2 encrytpion has limitations. yes? I'll check into the guest
> >wirelss connection.
>
> The only WPA2 limitation I'm aware of is that some very old wireless
> cards don't support it, but if all of your wireless equipment does,
> then I would recommend it.- Hide quoted text -
>
> - Show quoted text -

Yes, i meant to say the LAN password, not my personal login
password.Sorry. I guess that was my concern that once he had my LAN
password, he might be able to acess info from my laptop or PC. But
i'll change the security to WPA2 as you recommended. Thanks.

In message
<a944e0dc-9a53-4fbe-aab1-(E-Mail Removed)>
"(E-Mail Removed)" <(E-Mail Removed)> was
claimed to have wrote:

> I found out my wife gave our tenant the wireless encrypted password
>and ssid so he can use his laptop via our wireless Linksys router. I
>was pissed, but it's already been done. What steps can i take, if any
>to prevent any hacking? I playing devil's advocate and assuming this
>may happen. He's a nice college kid, but you never know. Am i
>vulnerable only with my wireless laptop or is my hardwired pc
>vulnerable too? Would disabling ssid broadcast help?

First off, don't worry about him hacking you. He's got physical access
anyway, so whether or not he wins this battle, if he wants to hack you,
physical access always wins the war.

Second, *which* password? WEP? WPA2? Router administration? Your
local computer password?

On Apr 16, 11:30*am, DevilsPGD <DeathToS...@crazyhat.net> wrote:
> In message
> <a944e0dc-9a53-4fbe-aab1-8f9fec99b...@z8g2000prd.googlegroups.com>
> "shareyourknowle...@hotmail.com" <shareyourknowle...@hotmail.com> was
>
> claimed to have wrote:
> > I found out my wife gave our tenant the wireless encrypted password
> >and ssid so he can use his laptop via our wireless Linksys router. *I
> >was pissed, but it's already been done. What steps can i take, if any
> >to prevent any hacking? I playing devil's advocate and assuming this
> >may happen. He's a nice college kid, but you never know. Am i
> >vulnerable only with my wireless laptop or is my hardwired pc
> >vulnerable too? Would disabling ssid broadcast help?
>
> First off, don't worry about him hacking you. *He's got physical access
> anyway, so whether or not he wins this battle, if he wants to hack you,
> physical access always wins the war.
>
> Second, *which* password? *WEP? *WPA2? *Router administration? *Your
> local computer password?

The password he has is the WPA shared key( same as (LAN?).I re-set the
security this morning to WPA 2 Personal When he logged into his laptop
(his personal password) he then used the WPA shared key password my
wife provided to access the internet. Sorry, i'm not too computer
savvy, but appreciate eveyone's help.

Did you agree in the lease to "share your internet connection"?
Is this a separate unit or a roomer in your home? Do they also share your
telephone line?
If it is part of the rental agreement then you will need to limit his access
to your network AND protect your computers.

If it is not part of your rental agreement and your tenant has their own
unit................let them get their own internet connection. Cut them off
quick before it becomes "ASSuMEd" that it is part of the lease!

I would not want anything negative coming from or to my network! Don't some
"nice college kids" create viruses, download porn and download tons of
music/videos?

I remember one college kid, who was taking a computer course, was instructed
to do an assignment on security, or lack of it, and the computer. The
professor was about to give him an incomplete on that assignment since he
could not find it in the paper pile. Then the student pulled up his
assignment on the professor's computer. Professor was NOT happy that he was
able to upload it onto HIS computer but the parents reminded the professor
that it WAS the assignment.
Well I thought it was funny! lol

So if you TRUST him, and I wouldn't, then it is up to you!
I would change your wireless settings!

JMHO


> "(E-Mail Removed)" <(E-Mail Removed)> was
> claimed to have wrote:
>
>> I found out my wife gave our tenant the wireless encrypted password
>>and ssid so he can use his laptop via our wireless Linksys router. I
>>was pissed, but it's already been done. What steps can i take, if any
>>to prevent any hacking? I playing devil's advocate and assuming this
>>may happen. He's a nice college kid, but you never know. Am i
>>vulnerable only with my wireless laptop or is my hardwired pc
>>vulnerable too? Would disabling ssid broadcast help?