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

Carsten Bormann <cabo@tzi.org> Sat, 16 November 2019 14:45 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Sat, 16 Nov 2019 22:45:04 +0800
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To: Louis Chan <louisc=40juniper.net@dmarc.ietf.org>
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Subject: [106attendees] Grab (Re: MRT Contactless Payment)
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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

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