An attacker who is able to impersonate you, can then persuade your mobile phone provider to swap your phone number to the SIM in 'your' 'new phone'.2FA via SMS when I log on. There is no alternative way of logging on.
What's the problem?
I was referring to going from no additional authentication to 2FA. That seems to be the issue being discussed here in that some people don't want it.An attacker who is able to impersonate you, can then persuade your mobile phone provider to swap your phone number to the SIM in 'your' 'new phone'.
It's not a hypothetical and has already happened to a fair number of people.
It can be useful or at least interesting to see your journey history. And by logging in you can see if you have any incomplete journeys.I can't remember the last time I logged into my TFL account. I just use my Oyster card as and when needed and it auto tops up when required.
An attacker who is able to impersonate you, can then persuade your mobile phone provider to swap your phone number to the SIM in 'your' 'new phone'.
It's not a hypothetical and has already happened to a fair number of people.
There's nothing wrong with that suggestion, except that the "luddite Grandma" that some people are arguing will be prevented from using the service with MFA would be no more able to use it. Authenticator and phone call seem like fine suggestions for other MFA options to me.What is so wrong with offering the option via an authenticator app, in addition to via SMS?
To me, it makes perfect sense. I can't see any downside beyond it will cost more money. Perhaps costing money is the reason.
Email typically is a password rather than requiring the user to have access to something else. In a significant proportion of compromised credential events more than one login is impacted either through password reuse, passwords stored together or email compromised & forgot password journeys used to gain access to other platforms.I don't see why they, and any organisation, can't use email for 2FA. Amex has done so for years. I don't have a problem with an app if the service is already linked to an app (as I can run most apps from my desktop computer).
One of these days I will set up a virtual number that sends texts to my email.
Its worth noting banks are a terrible example for security practise, I don't know of any that support modern secure 2FA methods. Email is better than nothing, but it's worse than SMS which isn't great itself, so I don't think it's worth implementing as an option for the tiny fraction of people that can't use SMS, especially as some people that could use SMS might then choose the less secure option.I don't see why they, and any organisation, can't use email for 2FA. Amex has done so for years. I don't have a problem with an app if the service is already linked to an app (as I can run most apps from my desktop computer).
One of these days I will set up a virtual number that sends texts to my email.
Annoys me when companies do this. My council has just started doing it. What is someone going to do? Hack into my account and pay my council tax bill for me?! They’re more than welcome if so…Even to top up my Oyster card on Thursday with £10 I got a verification code on my mobile. I did not have this when I topped up my pay as you go phone by £10 earlier in the week.
Three send an authorisation code to my phone if I want to access my account from another device.Even to top up my Oyster card on Thursday with £10 I got a verification code on my mobile. I did not have this when I topped up my pay as you go phone by £10 earlier in the week.
No, but they could get your details and then use them for fraudulent purposes. If like many people you use the same password for multiple accounts then those could be compromised as well. Although not perfect 2FA methods give a lot more protection than just passwords.Annoys me when companies do this. My council has just started doing it. What is someone going to do? Hack into my account and pay my council tax bill for me?! They’re more than welcome if so…
I had that problem for a long time. To log into Internet banking on a gid day I had to put the phone in the garden. On a bad day I had to walk to the end of the street.I hate 2FA via SMS as I get zero mobile signal at home, so it just doesn't work.
I have no mobile signal at all, but all my calls and texts are received via my wi-fi.I hate 2FA via SMS as I get zero mobile signal at home, so it just doesn't work.
I can make calls via Wi-Fi but have never had an SMS over Wi-Fi, only iMesssge, etc. In any case, many networks, in particular the cheaper ones, do not support Wi-Fi Calling.I have no mobile signal at all, but all my calls and texts are received via my wi-fi.
I thought this was standard now.
Many photos won't support it.I can make calls via Wi-Fi but have never had an SMS over Wi-Fi, only iMesssge, etc. In any case, many networks, in particular the cheaper ones, do not support Wi-Fi Calling.
Probably because it would cost more money. TfL are a public service and not a private bank.Why can’t we have Face/Touch ID on iPhone? If it’s good enough to log into my banking apps, surely enough for TfL?
Sending SMS messages must cost money too!Probably because it would cost more money. TfL are a public service and not a private bank.
Unless I'm missing something, fingerprint sensors and face ID are usually used for unlocking an app once you've done the initial sign in, so unless the TfL app is asking for an SMS everytime it's opened, not just at the frequency it asks for you password it's not equivalent (though TfL does make you sign in again too often)Why can’t we have Face/Touch ID on iPhone? If it’s good enough to log into my banking apps, surely enough for TfL?
Good point. Once I hadn't thought of. Maybe that is from a different kind of budget or being an on going cost is possible whereas the sudden development cost isn'tSending SMS messages must cost money too!
That is usually the case for first time sign on or maybe if you haven't signed up on a while but otherwise they usually remember.Unless I'm missing something, fingerprint sensors and face ID are usually used for unlocking an app once you've done the initial sign in, so unless the TfL app is asking for an SMS everytime it's opened, not just at the frequency it asks for you password it's not equivalent (though TfL does make you sign in again too often)