THE WARNING FIRST REPORTED BY OUR MEMPHIS STATION WMC.

REPORTED BY OUR MEMPHIS STATION WMC. >> Reporter:

MEMPHIS STATION WMC. >> Reporter: 8-YEAR-OLD ALICIA

>> Reporter: 8-YEAR-OLD ALICIA HEARD THE SOUND COMING

8-YEAR-OLD ALICIA HEARD THE SOUND COMING FROM HER BEDROOM.

HEARD THE SOUND COMING FROM HER BEDROOM. >> HELLO THERE.

FROM HER BEDROOM. >> HELLO THERE. >> Reporter: A STRANGE

>> HELLO THERE. >> Reporter: A STRANGE VOICE TALKING TO HER.

>> Reporter: A STRANGE VOICE TALKING TO HER. >> I WAS LIKE WHO IS

VOICE TALKING TO HER. >> I WAS LIKE WHO IS THAT?

>> I WAS LIKE WHO IS THAT? >> Reporter: THE SOUND

THAT? >> Reporter: THE SOUND WAS COMING FROM THE

>> Reporter: THE SOUND WAS COMING FROM THE FAMILY'S NEWLY

WAS COMING FROM THE FAMILY'S NEWLY INSTALLED RING CAMERA

FAMILY'S NEWLY INSTALLED RING CAMERA AND MICROPHONE, THE

INSTALLED RING CAMERA AND MICROPHONE, THE POPULAR HOME SECURITY

AND MICROPHONE, THE POPULAR HOME SECURITY DEVICE BOUGHT BY THE

POPULAR HOME SECURITY DEVICE BOUGHT BY THE FAMILY TO WATCH THEIR

DEVICE BOUGHT BY THE FAMILY TO WATCH THEIR CHILDREN BUT WAS

FAMILY TO WATCH THEIR CHILDREN BUT WAS INSTEAD BEING USED BY

CHILDREN BUT WAS INSTEAD BEING USED BY A STRANGER TO WATCH

INSTEAD BEING USED BY A STRANGER TO WATCH THEM.

A STRANGER TO WATCH THEM. >> WHO IS THAT?

THEM. >> WHO IS THAT? >> I'M YOUR BEST

>> WHO IS THAT? >> I'M YOUR BEST FRIEND.

>> I'M YOUR BEST FRIEND. I'M SANTA CLAUS.

FRIEND. I'M SANTA CLAUS. >> MOMMY!

I'M SANTA CLAUS. >> MOMMY! >> I'M SANTA CLAUS.

>> MOMMY! >> I'M SANTA CLAUS. DON'T YOU WANT TO BE

>> I'M SANTA CLAUS. DON'T YOU WANT TO BE MY BEST FRIEND?

DON'T YOU WANT TO BE MY BEST FRIEND? >> I WATCHED THE VIDEO

MY BEST FRIEND? >> I WATCHED THE VIDEO AND I MEAN, LIKE THEY

>> I WATCHED THE VIDEO AND I MEAN, LIKE THEY COULD WATCH THEM

AND I MEAN, LIKE THEY COULD WATCH THEM SLEEPING, COULD HAVE

COULD WATCH THEM SLEEPING, COULD HAVE WATCHED THEM CHANGING.

SLEEPING, COULD HAVE WATCHED THEM CHANGING. THEY COULD HAVE SEEN

WATCHED THEM CHANGING. THEY COULD HAVE SEEN ALL KINDS OF THINGS.

THEY COULD HAVE SEEN ALL KINDS OF THINGS. >> Reporter: HACKED BY

ALL KINDS OF THINGS. >> Reporter: HACKED BY A CYBER SPY, THE

>> Reporter: HACKED BY A CYBER SPY, THE CHILLING VOICE

A CYBER SPY, THE CHILLING VOICE WATCHING THE BEDROOM

CHILLING VOICE WATCHING THE BEDROOM BELONGING TO THREE

WATCHING THE BEDROOM BELONGING TO THREE LITTLE GIRLS TAUNTED

BELONGING TO THREE LITTLE GIRLS TAUNTED ALYSSA BEFORE HER

LITTLE GIRLS TAUNTED ALYSSA BEFORE HER FATHER UNPLUGGED THE

ALYSSA BEFORE HER FATHER UNPLUGGED THE DEVICE.

FATHER UNPLUGGED THE DEVICE. TONIGHT RING SAYING

DEVICE. TONIGHT RING SAYING THEIR SECURITY WAS NOT

TONIGHT RING SAYING THEIR SECURITY WAS NOT BREACHED, ADDING

THEIR SECURITY WAS NOT BREACHED, ADDING HACKERS OFTEN REUSE

BREACHED, ADDING HACKERS OFTEN REUSE CREDENTIALS STOLEN OR

HACKERS OFTEN REUSE CREDENTIALS STOLEN OR LEAKED FROM ONE

CREDENTIALS STOLEN OR LEAKED FROM ONE SERVICE ON OTHER

LEAKED FROM ONE SERVICE ON OTHER SERVICES.

SERVICE ON OTHER SERVICES. EXPERTS SAY USE STRONG

SERVICES. EXPERTS SAY USE STRONG PASSWORDS, CHANGE THEM