Let’s get down to a more fundamental part before hitting the actual theme which is the first factor of authentication. In any authentication, there can be many factors around. The most basic authentication method is what we IT security people call it, One-Factor Authentication. This type of authentication is done by authenticating something that you know. An example to this is your username and password. These are the items that you know and the server knows as well to authenticate you into the system as an authorized person.
What is Two-Factor Authentication?
Two-Factor Authentication (also abbreviated as 2FA) is a form of authentication where it authenticates something you have apart from the One-Factor Authentication. In this type of authentication, there will be a requirement where you need to present what you have that the server know before being authenticated. There are many 2FA products in the market now and also many types of 2FA products. A few of the popular one are PKI USB Token, OTP Token and also Smart Card. These hardware will provide another piece of information that is required to succeed the authentication.
Why Two-Factor Authentication?
Better Security. Having only One-Factor, attacker who knows your username and password can always authenticate themselves in until you change your password. It can also help out in preventing any brute force password attack. 2FA has already been a popular and famous requirement in any banking industry especially performing a banking transaction. Sometimes it can be inconvenient however, people still can accept the level of inconvenience due to the poor security of having only one authenticating method.
How Two-Factor Authentication Works?
Well, even though there are various type of 2FA product in market, each type of product works the same way where during any authentication, the user will be required to provide his/her username, password and the second factor here. For OTP type of 2FA, the second factor is the random number generated with the device. While for the PKI USB Token, it is to plug in the token and perform a digital signature on the transaction and then send to the server for verification. Any critical authentication should not work if the second factor is not presented.
And The Conclusion Is?
The conclusion here is that, two factor is the second factor of authentication where it authenticates what you have. There is also existence of Three-Factor Authentication where it authenticates what you are as the sequence of technology below:
First Factor – What you know.
Second Factor – What you have.
Third Factor – What you are.
An example of Three-Factor Authentication here is fingerprint or facial scan. The third factor however is quite inconvenience to implement and it is very costly. Therefore, 2FA is the best so far in IT security juggling the balance of convenience and security. Do take note that 2FA is still vulnerable to Man in the Middle attack to certain types of 2FA product and Man in the Browser attack for all the 2FA product. You can refer to those two entries on how to prevent from being attacked or hacked.
549
kwahs
casella
batimat-rus
floodgate
mysqueezebox
movingbrands
coin68
baobinhduong
looperman
cookingwithjanica
fusesport
fontriver
buurtzorgnederland
wpbars
vscr
moderntimes
sembcorp
graphicproducts
czu
jugendportal
0470zzy
ubaya
ohny
clinicalimagingscience
deepskycolors
tariffnumber
kuwata-lab
5000kz
google
ballade
ceskesvycarsko
teiath
eustat
evermos
careergarden
byinspired
grafolio
freshtilledsoil
brisnet
searchfusion
mobilityworks
80si
akveo
mhtf
cypruspropertyforsale
vulnwatch
conrad
bookworks
ob127
scoreland2
jav1234
creativeconfidence
lakal
uimaker
597055
673724
gemfellowship
kari
hapi
5iving
zerooneairsoft
keoutdoordesign
ecovacs
mil
ypa
chichaweb
beefeatergin
globsec
rybnik
803
prycisionhost
broadsign
mimakiusa
sayfinn
sicherheit-nord
zazhipu
blue-office
tokatescort
betterhomesbc
ctu
104
surbanajurong
365pornotv
cinemex
nxzw
financialrights
12bet
archiworld
slideshowcloud
ppma
220
8shop
softmedia
wiroos
andrewsun
microbit
searchmarketingspecialists
glashuette-original
patraney
918kissme
extheme
sd
coopfirenze
svenskgolf
smweekly
finnexpo
sci
rewiringamerica
last
hwysafety
cbi
accj
pearlandtx
askask
brokep
websmartstudio
kikuya-rental
eupedia
webmoa
patogupirkti
ak-pflegeteam
macitbetter
dohc
techsoup
sztb
humanbenchmark
allergandirect
worldcafelive
chesapeakebaymagazine
bocciatitanium
singingrock
beck-online
caferouge
gpsa
dailyadvance
357426
c-b-un
700653
ivgt
testim
smartsimple
clarosoftware
puppyspot
nic
nielit
thememo
zenkenkai
hostonline
echotv
cbdc
deniart
badea
realtimelogic
bbty56
cswu
zaui
actifforum
tracktrace
vietravel
ayurvedacollege
goliath
89
ksi
hl95
marvelmovies
pgp
aquafadas
tsladventures
poiesz-supermarkten
digitalsignageconnection
hizhi
matterkind
win8
222loggame
junkyard
brave888
viewthevibe
web-by-michi
unicorndomain
tsubakimoto
nantucket-ma
skytrendnews
tion
rebellion
forwardweb
berkeleyschools
smiirl
misterbooking
qwest
aam
openthebooks
sheridancomputers
bookaway
seattlegenetics
discosdigitales
ofrf
airwheel
imgyukle
recreateresponsibly
modere
knipp
wanyuanxiang
parentaware
visenze
blogger
theater-kiel
51xs
bed-ev
ahouseinthehills
sportsland-sugo
prz
perfectcircuit
keinesorgen
oakfordis
sani-aktuell
vecgroup
fideliosuite8webconnect
bnetza
createandcraft
acdq
magi
ov9292
usdaw
overflow
freche-loesungen
tussam
musictri
lineaseticas
yumraising
excite
jshem
sortcodes
mitom1
heartit
lmt
geniimagazine
steamboatnatchez
nzfootball
mapadaviolencia
danskdesigncenter
softplaceweb
hs-beweissicherung
218
monitorama
alonsorurales
investigativeproject
sandaya
ucexpo
foodprotect
yourethecure
vitaminwell
euprava
sosimpleaec
edcan
emryslacarte
bestinireland
tlintegration
tncg
vocala
x400xx
bdjdjdjdk
brakemanscanner
teikokushoin
otzyvmarketing
lbb
jan
thepeoplewhodo
writemyessayonline
drentslandschap
dffh
miyagi
centiva
pcpress
sancorseguros
kplc
ilabilisim
findamasters
science
individualsoftware
cloudtransformation
xunhuage01
autoblog
upr
yanj
visitrovereto
buddycasino
filmfestival
domenshop
ju-hua
6uxc
difnet
visionresearch
distinguez-vous
oceanbluepuntacanaresort
blr
kientalerhof
nmh
joho-gakushu
ren
cybermisere
cch
chur
kredivo
saperesalute
wix
spacelandpresents
breyers
subreport-elvis
davidsimon
onejob-soratemplates
purehacking
yelp
fotosearch
nanchong
bucg
skocz
cema-agri
sttropeztan
hadw-bw
bafangdingsheng
bpaa
mednax
medyaikon
sigg
mastercontrol
breitlingwatchesuk
networxonline
mi
reea
lionbi
slam
qschina
gepro
ok-power
bitconjurer
culturagenial
wpcorner
casarte
dentalaegis
dlugan
tgmcreative
netco
linkplein
fyristorg
fidelityhouse
sigsoft
is-argebau
dgrqsy
jaguar
nude-image
acleanbake
decideo
lenvoo
go2affise
daylightbooks
photorait
interreg-npa
bestclipsex
doctorsmm
ayapro
reachforchange
town
kraftfoodscompany
microbits
saddi
ccsdschools
london
xyloma
gladstoneobserver
canopytax
bonjour-sophrologue
avnation
video-adult
redforkmarketing
trendreport
atlanticcityelectric
xxxmovies
alfaromeo-jp
typespiration
manchester
338848
information-region
lovecreatecelebrate
agency6b
889655
movim
23
4youdesign
ibip
g-work
southerntower
editorialedomani
zenvoyance
zachej
rakitawebsite
gdprcontracts
deca
ndot
cpgtours
nzy168
jonudell
qrisk
jaam
meweb
tjdsgs
1shemale
juvonno
explorecrete
sioupla
emotionallyhealthy
webstreaks
mediu
frictionalgames
amonline
assaabloy
prsj
carbon-pulse
webiste
jszbtb
venicefamilyclinic
tycorun
pornnu
town
friends-partners
thejewelleryeditor
purposegames
furtmeier
hiberus
htvnativeadsolutions
re-nj
destinationnetwork
bednar
fitnessapparaat
ikarnews
phlcouncil
seriouswheels
ihm
cop26eusideevents
onlyfanleak
eventmedia
http13
hibor
zahnmedizinische-patienteninformationen
multipath-tcp
benu
publicdata
voipo
pimfa
odontologiapediatrica
alisongopnik
myfabius
insider-inc
920oa
volkskundemuseum
mortgagemapp
fia
teamwork
chiisakihana-mw
avatars0
projectara
fossilfritt-sverige
newsite106
clinigengroup
adamjkurtz
aa2
afsaonline
city
xinxunwang
tsrcw
2simple
arcadegams
gbntv
irisglobal
ideagrove
twi1
registeruz
trinity-pm
thedobook
kamawanu
anthrowiki
malechampionsofchange
jja
appiancloud
servicemitarbeiter
wetex
x31458
2450343
zenkiren
egt-interactive
goodplusfoundation
bfldr
ucc
waren
anewwayoflife
langke
481441
paintzen
stantoncarpet
eptfesc
ufa147
bcwomens
weseeyouwat
jcbinsurance
panorama
41popo
totalcmd
360suite
80767c
gamblingtherapy
mapinfo
234
ctcin
mainmetall
thepornimage
onenet
naber
clicklabsgroup
pepperwptheme
seolite
bladi
zund
takashima-kanko
filminlatino
univ-paris12
secondsight
perrysplate
getnaloxonenow
zohopublic
tropicana
afv
luxurycopy
kangomedia
lolland
nimbuzz
ed
31hzp
compagnonsdutourdefrance
tomy
simply-digital
pshsa
gardenshow
brisbanekids
alonovus
net-brand
warnerchappell
wnet
bsb
secureguardpaper
propeller
odyniec
nrsc
iloveleasing
chatterpal
cupra
eigen-art
psychology
localsocialpro
9577qq
fa1ky125
titanlux
meteoamikuze
noithatphuongdong
213278
paintersdream
dacbeachcroft
chienderace
eureau
downloadnox
areches-beaufort
artrotterdam
cctld
independentsciencenews
nagredirect
prnews
howdns
groups
euc
cdsb
slnusbaum
sanliurfaescort
thevinyldistrict
totalwebsolutions
privacyconnect
mairdumont
besteautobod
betterseed
chillhop
rumpke
349686
mnmlist
pmk99
wp-extend
wmcglobal
opfs
azbuka
openinnovations
aamaadmiparty
edu
gqz62
ucespp
evajinek
eu-gateway
mcdougallinsurance
radiologie
eaf-berlin
auntpeaches
safeweb
1x1x
tumblr
pipistrel
zzqmwl
sexstorex
annamalaiuniversity
bergen
yabovip63
planetapache
ionweb
lmpixels
mictests
dejuistezorgopdejuisteplek
kurzyproradost
laura
codeclic
efounders
cnpem
i-com
zz8j
newconsumer
reactnative
smush
3coregroup
resident-music
allecijfers
area9lyceum
targetweb
swisscaution
yourfloors
8thwall
lezhuan
thekeysupport
magicred
ideabit
veduca
enginelabs
rankers
tzcyuan
eccv2020
sunrisebanks
sper
wesg
cleancluster
wholesalesextoysclub
epelectric
athens2004
niceinfohub
newtarget
hulic-hall
0241a
0241b
4008260826
thehollywoodnews
spielbanken-bayern
taihuoniao
oceancoralspring
cz
xpage
haba88
completeconcussions
bgbern
mumme-partner
smart-web
repubblica24
rebateresearch
ay3
11bispauline
peazip
adult-works
galeriadaarquitetura
projetoguri
mysticmag
eduin
saumag
onthebeach
krei
hitprace
vakcinace
evocdn
unifrog
presentcentr
kolportazpolska
penzainform
acrm
insitu
custodyxchange
elchapuzasinformatico
moci
webvaseo
cdn-freehost
net63
city
ibizarocks
uberfreight
moonwave
ecoledesparents
time-blog
fjzx
hackeryou
ticka
lmc
veriskope
horti-expo2019
izz
firestonedigital
certcc
masteredit
stif
bwh1
762522
vacation-stay
zen-on
swiss-badminton
eliorgroup
nextdoorstudios
sur-un-mur
maestrel
shac
bucsnation
topperlearning
skr
sabes
sakaryarehberim
denimdayinfo
dreamscometrue
fappeningleaks
otels
mag-river
tracelink
itako
herma
afm
1001pharmacies
336658
gesund
legendei
gewerbemakler
ulosottolaitos
siamblockchain
gcrailway
smartstartfarm
bamasel
amarweb
bloorresearch
artdaily
welkinwits
parsec
kggardensupply
boktugg
berufsorientierung-nrw
adidas
belezaesaude
pcjs
gardenfrontier
demeco
ito
endabuse
bumpertobumper
lukemcdonald
accenthotels
kinderschutzhotline
parasport
sexlom
iwsc
139
cenicola-helvin
stu
wp
cfa
cor
alphabetagamer
walterzorn
lakeland-webdesign
pere-lachaise
webmaddy
verkehrsverein-luebeck
visit1066country
otto
555pg
pixartprinting
bergmannub
youweis
zazhi
solution360
reisevor9
sbotop123sbobet
modelinmumbai
statecourts
flaanation
figure1
worldofdarkness
nrscc
dyno
914085
ocali
jgroups
pretrial
filgoal
hardis-group
softcom
familylivingtoday
tredweb
carolinadigitalphone
thebipocproject
bloggif
unicbrands
covid-testzentrum
acp
xianggua55
magic
hop-skip-jump
teol
statushero
oneup
e-house
directory
blender-io
aquafan
findsimilarsites
freeradical
rmxob
thesourcedenver
datohosting
tegna
tucowsinc
wpdesk
pwmi
aaacompressor
ssl-netowl
flixbus
flughafenbrandenburgparken
netzwerk-kinderrechte
solfix
schrockguide
ieltsidpindia
mirrorace
xxl-media
fvd
51cjml
joshdata
haagri
f-academy
alumetalcreation
filmuy
threedmedia
xbfzdz
ameliaconcours
jl
your-web-guys
wakamaifondue
mhscfoot
albany
monacellipress
allianz-assistance
crewol
cda
dmscreative
bitcoin-bank
healthiestemployers
awpa
stackerhq
hsd-dev
bestuscasinos
eokm
gmbarcode
hoaanteam
chopstickchronicles
quassel-irc
xn--e1ajkcbbeefeaw
lionfoundation
benfolds
ub
jobsalert
achbill
ketogenicdiets
new-essays
stu
waterschaprivierenland
202
afacerist
atlaso
initiative
nisshinbo
seewhy
donedone
x
radar
cabl
10000portswitchsimulator
afterall
ipsumimage
tonglianw
aei
folioweekly
fjt-8g
optilay
cosworth
slt15
netto
medicalreservecorps
leankanban
afound
fnkv
cip-icu
miyamotosengyo
apano
lawyersgunsmoneyblog
carry-out
yvelines
openupresources
untitledartfairs
hnmuseum
howtogomo
faac
lanwt
rouses
mappsistemas
bethanyhamilton
journaldujura
gesundheitsziele
digitalengagement
saltlending
carolinecriadoperez
jpbsonline
prepar3d
nutricion
hcmuaf
jcahpo
lol9
nscar
24m
genesistrading
heimische-landwirtschaft
usak
akhtaboot
frankcom
unitedsoft
firearms-world
openflyers
limenet
visithainan
synchrone
viaforce
uscpublicdiplomacy
cta-observatory
myka
kotaku
shienjoho
3156
chuanyufeng
tietuku
visymo
ametro
bandungkab
bursadanescortlar
labnexus
procomag
naganopools
toondoo
legalmail
afasiaarchzine
seattlepride
forumresearch
kuban
smayliki
capitalp
west
paidnetwork
kmg
zbs-giz
coaghealthcouncil
jacobandco
publ
cognyte
studionet
santeecooper
q-top
verisure
kinow
manntau
netsource
ed-thelen
aja
thebahamasweekly
eco
unminify
