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🇭🇰 Hang Seng Email Security

Weekly audit of email security across 89 companies in the Hang Seng.

Hong Kong Stock Exchange · 89 companies analysed · Scan week: 2026-03-23

  • Companies listed in the Hang Seng score an average of 33/100 for email security this week.
  • 0% of Hang Seng companies achieve a grade of A+ or A in email authentication, while 81% receive a D or F.
  • The average score of 33 is 9 points below the global average of 42, suggesting room for improvement in email authentication.
  • 57.3% of Hang Seng companies have deployed DMARC email authentication, and 15.7% enforce a strict reject policy to block spoofed emails.
  • SPF record deployment stands at 82%, authorizing legitimate sending servers and helping prevent email spoofing.
  • 0% of companies have configured BIMI to display their verified brand logo in supported email clients.
  • 0% enforce TLS encryption for inbound email delivery via MTA-STS, protecting against downgrade attacks.
  • DNSSEC is enabled on 3.4% of Hang Seng domains, adding cryptographic validation to DNS queries.
  • CLP Holdings leads the Hang Seng with a top score of 61/100 (C).
  • CGN Power has the lowest score at 0/100, indicating significant gaps in email security configuration.
  • Scores range from 0 to 61 with a median of 38, reflecting varied levels of email security maturity across the index.

Average score

33/ 100

DMARC reject

15.7%

BIMI configured

0%

MTA-STS enforce

0%

DNSSEC enabled

3.4%

0
A+
0
A
0
B
17
C
33
D
39
F

33

Average

38

Median

0

Min

61

Max

Company

Grade
1CLP Holdingsclpgroup.com61C
2Power Assets Holdingspowerassets.com59C
3CK Asset Holdingsckah.com56C
4CK Infrastructurecki.com.hk56C
5Baidubaidu.com56C
6ZhongAn Onlinezhongan.com55C
7HSBChsbc.com55C
8Geely Automobilegeely.com54C
9Innovent Biologicsinnoventbio.com54C
10Trip.com Grouptrip.com54C
11Hong Kong Exchanges and Clearinghkexgroup.com53C
12MTR Corporationmtr.com.hk53C
13Prudentialprudentialplc.com53+1C
14BOC Hong Kongbochk.com52C
15Henderson Landhld.com52C
16Link REITlinkreit.com51C
17CK Hutchisonckh.com.hk51C
18Bilibilibilibili.com49D
19Lenovo Grouplenovo.com49D
20Sinopecsinopec.com49D
21JD.comjd.com48D
22Kuaishoukuaishou.com48D
23Chow Tai Fookchowtaifook.com48D
24China Merchants Bankcmbchina.com48D
25China Construction Bankccb.com48D
26Nongfu Springnongfuspring.com46D
27Hengan Internationalhengan.com46D
28Tencent Holdingstencent.com45D
29Li Autolixiang.com44D
30SenseTimesensetime.com44D
31Hang Seng Bankhangseng.com44D
32Sunny Opticalsunnyoptical.com44D
33Budweiser APACbudweiserapac.com44D
34XPengheyxpeng.com43D
35ANTA Sportsanta.com43+15D
36China Telecomchinatelecom-h.com43D
37BYD Companybyd.com42-13D
38New World Developmentnwd.com.hk42D
39China Unicomchinaunicom.com.hk41D
40Galaxy Entertainmentgalaxyentertainment.com41D
41ICBCicbc.com.cn40D
42Zhongsheng Groupzs-group.com.cn40D
43Alibaba Groupalibabagroup.com40D
44AIA Groupaia.com39D
45AAC Technologiesaactechnologies.com38D
46PDD Holdings Inc.pddholdings.com38D
47CITICcitic.com37D
48Meituanmeituan.com36D
49Techtronic Industriesttigroup.com35D
50Orient Overseas Container Lineoocl.com35D
51China Pacific Insurancecpic.com.cn29F
52New Oriental Educationneworiental.org29F
53Kingboard Holdingskingboard.com29F
54Hansoh Pharmaceuticalhspharm.com29F
55China Resources Landcrland.com.hk29F
56CNOOCcnooc.com.cn29F
57Haier Smart Homehaier.com29F
58NetEasenetease.com29F
59China Life Insurancechinalife.com.cn29F
60Ping An Insurancepingan.cn29F
61SMICsmics.com26F
62Wharf REICwharfreic.com26F
63PetroChinapetrochina.com.cn26F
64Sun Hung Kai Propertiesshkp.com26F
65Bank of Chinaboc.cn25F
66Xinyi Solarxinyisolar.com25F
67Bank of Communicationsbankcomm.com23F
68Li Ninglining.com23F
69WH Groupwh-group.com23F
70Wuxi Biologicswuxibiologics.com22-15F
71Hang Lung Propertieshanglung.com21F
72Longfor Grouplongfor.com15F
73Sands Chinasandschina.com15F
74ENN Energyennenergy.com15F
75Xiaomimi.com15F
76China Merchants Portcmport.com.hk14F
77Sino Biopharmaceuticalsinobiopharm.com14F
78China Hongqiao Grouphongqiaochina.com14F
79Haidilaohaidilao-inc.com8F
80China Shenhua Energycsec.com8F
81Alibaba Healthalihealth.cn0F
82China Resources Powercr-power.com0F
83BYD Electronicbydelectronic.com0F
84China Mobilechinamobileltd.com0F
85China Mengniu Dairymengniu.com.cn0F
86JD Healthjdhealth.com0F
87China Resources Beercrbeer.com.hk0F
88China Overseas Land & Investmentcoli.com.hk0F
89CGN Powercgnp.com.cn0F

Understanding index-level analysis

A stock index groups the largest companies in a market. Analyzing their email security provides a representative snapshot of how a country's or region's corporate sector protects against email-based threats.

What this page shows:

  • Average score - The mean email security score across all constituent companies
  • Grade distribution - How many companies fall into each grade bracket (A+ through F)
  • Company table - Individual scores, grades and key indicator status for each company
  • Sector breakdown - How different industries within the index compare

Key standards tracked

Each company is evaluated on:

  1. SPF - Is the sending policy properly configured? Does it use -all (hard fail)?
  2. DKIM - Are signing keys published and strong enough (2048-bit minimum)?
  3. DMARC - Is a policy in place? Is it set to quarantine or reject?
  4. BIMI - Is the brand logo published for inbox display?
  5. MTA-STS - Is inbound email transport encryption enforced?
  6. DNSSEC - Is the DNS zone signed to prevent spoofing?

FAQ - Frequently asked questions

Q: How are companies scored?

A: Each domain is analyzed for email authentication standards and awarded up to 100 points across three pillars.


Q: What does the grade distribution show?

A: The spread of scores from A+ to F, indicating overall index maturity.


Q: Can I compare indices?

A: Yes, via the Statistics page.


PagePurpose
Observatory DashboardOverall overview with key metrics
StatisticsCross-index and cross-sector comparison
Email Domain CheckAudit your own domain