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Re: [106attendees] Grab (Re: MRT Contactless Payment)

Sanjeev Gupta <ghane0@gmail.com> Sat, 16 November 2019 15:13 UTC

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From: Sanjeev Gupta <ghane0@gmail.com>
Date: Sat, 16 Nov 2019 23:12:53 +0800
Message-ID: <CAHZk5WdV0CcXB-BYXZtk2xK5PZXoJov1r-1CA9jkC6XEoTik7w@mail.gmail.com>
To: Carsten Bormann <cabo@tzi.org>
Cc: Louis Chan <louisc=40juniper.net@dmarc.ietf.org>, "106attendees@ietf.org" <106attendees@ietf.org>
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Subject: Re: [106attendees] Grab (Re: MRT Contactless Payment)
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Hi,

The recycle period in Singapore tends to be quite long, we have a
population of 5 million and 20 million numbers in the Numbering Plan.


On Sat, 16 Nov 2019, 10:45 PM Carsten Bormann, <cabo@tzi.org> wrote:

> On Nov 16, 2019, at 19:49, Louis Chan <louisc=40juniper.net@dmarc.ietf.org>
> wrote:
> >
> > Suggest you folks to install Grab in your phone. It is the Singapore
> version of Uber.
>
> It may not be useful if you use a local prepaid SIM card.
>
> Since just about every visitor gets one and then gets a Grab account, you
> are likely to get a recycled phone number and with that hit the Grab
> account of a previous visitor.  Since Grab tends to require validation with
> your Facebook account etc. after such a long time, you can’t even steal
> your rides from the previous owner of the phone number.  It seems you
> simply cannot use Grab.
>
> Nice real-life warning about relying on reassignable identifiers (phone
> numbers, domain names, URLs).
>
> (In other news, Grab’s surge pricing appears to be about as evil as that
> of Uber.)
>
> Grüße, Carsten
>
> --
> 106attendees mailing list
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>

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