Table of contents exchange of letters with the minister executive summary



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Report of the COI into the Cyber Attack on SingHealth 10 Jan 2019
Communication channel
Numbers
#
(cumulative from 20 –
25 July)
SMS messages to patients with valid mobile numbers in SingHealth records
2.03 million Letters to patient with no mobile numbers in
SingHealth records
86,700
Self-check on HealthBuddy and SingHealth website
215,600 Telephone calls to hotlines and SingHealth’s general call centers
13,400 Email enquiries received at dedicated account
3,100 Leaflets
36
# The numbers in each category may overlap as multiple channels may have been used to reach some patients
647. From 26 July 2018, SingHealth began sending letters to patients for whom
SMS messages to their mobile numbers on record had failed. In total, around
434,000 letters were sent as at 30 July 2018. Over 400 volunteer staff supported the operation to sort, check and print letters daily from 21 to 28 July 2018. All printing was done in-house by SingHealth.
33.2.4
Guarding against deliberate falsehoods and phishing risks
648. SingHealth also closely monitored for fake news, fake websites, and scams.
Within a few hours of the first batch of SMS messages being sent on 20 July 2018, SingHealth received information that there were fake SMS messages being sent. SingHealth made a police report about the fake messages, and alerted the public through social media, mass media, and SingHealth’s websites.



COI Report – Part V
Page 203 of 425

SingHealth initially used a bit.ly
41
link in its SMS messages (bit.ly/cyber- attack, to improve readability for recipients. However, as a bit.ly link can be generated by anyone and carries a phishing risk, some recipients of the SMS-es had concerns as to the authenticity of the SMS messages. These concerns were realised when the fake SMS messages emerged. Fortunately, as SingHealth was closely monitoring the emergence of fake communications, it was able to quickly alert the public to the fake SMS messages. SingHealth also changed the bit.ly link to www.singhealth.com.sg/cyberattack (in full) in subsequent SMS messages.
33.2.5
Patient satisfaction
649. To track the sentiments of patients who called the hotlines, SingHealth introduced a callers emotion survey at the call centres on 22 July 2018. Call centre staff were provided with a chart which showed a happy face, neutral face and unhappy face, and were asked to indicate on the chart after every call how they gauged the caller's sentiment. The chart was intended to be simple and easy to use, and was based on the staff’s assessment. For calls, 82% were assessed to be satisfied, 16% were neutral, and 2% were unhappy.
650. A similar chart was introduced for staff to assess the sentiments of each person who sent in emails to the dedicated email account that was setup, check@singhealth.com.sg. 85% of the persons who emailed were assessed to be neutral, 8% were unhappy, and 7% were satisfied.

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