New o pen p orts f ound ( Only i f t he p ort w as n ot s een o pen i n t he
previous 2 m onths)
The
I nternet S ecurity C heck
s canned t he e xternal s ide o f y our r outer a nd f ound a n o pen p ort
that w as n ot s een o pen f or t he l ast 6 0 d ays.
Please c heck y our r outer a nd N AT c onfiguration f or
p ort f orwarding
: r eview t he p ort f orwarding
rules a nd r emove t he u nneeded o nes.
If
U PnP o r N AT-PMP
a re e nabled o n y our r outer, d evices a nd a pplications c an a utomatically
bypass t he f irewall t o a llow i ncoming c onnections w ithout a dditional c ontrol o r a uthorization.
For m ore d etails a nd t o s ee t he f ull l ist o f o pen p orts, o pen t he ' Internet S ecurity' s ection i n t he
Fing a pp.
A W i-Fi s tation i s b eing a ttacked
A v ery c ommon w ay t o s tart a n a ttack v ia W i-Fi i s b y f orcing t he c lient d evices t o d etach f rom
the c urrent " legitimate" a ccess p oint a nd r econnect t o a " rogue" o ne. T his i s a v ery c ommon
attack, u sually p erformed i n c offee s hops, h otels a nd p ublic p laces ( if y ou o ften u se s uch p ublic
WiFi s ervices w ithout W i-Fi e ncryption, w e s uggest y ou a ctivate a h igh q uality V PN s ervice l ike
ProtonVPN o r s imilar, b efore t urning o n t he W i-Fi). T his a ttack i s a lso p opular i n o ffice p laces
where t he W i-Fi p assword i s o ne a nd s hared a mong a ll u sers ( versus W i-Fi a uthentication w ith
personal c redentials).
After t he d eauthentication a ttack, c lients t ypically r econnect t o t he a ccess p oint w ith t he s tronger
signal. F or t his r eason, t he r ogue a ccess p oint " shines" i n t he r adio s pectrum.
Immediately a fter r eceiving t he F ingbox a lert , o pen t he F ing a pp, g o t o t he D igitalFence
screen a nd t ap o n S TATIONS . A t t he t op o f t he l ist y ou s hould s ee y our a ccess p oints p lus
another o ne c laiming t he s ame W i-Fi n etwork n ame ( SSID). I n t he e xample b elow, t he f irst
access p oint i s t he r ogue o ne, c laiming t he s ame S SID.
User's G uide - A pp v 6.2.1
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