Secure Messenger Scorecard development via yawnbox.com
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1
PlatformsUse casesThird-party dependent?Is multi-factor authentication an option?Encrypted content in transit?Encrypted metadata in transit?Encrypted so the provider can’t read it?Can you verify contacts’ identities?Are past comms secure if your keys are stolen?Is the code open to independent review?Is security design properly documented?Is there a recently published code audit?
2
Phone SMS
& voice
macOSTextYesNoWeakNoNoNoNoNoNoNo
3
Debian Linux
Group text
4
WindowsVoice
5
Browser extension
Group voice
6
WebsiteVideo
7
Android
Group video
8
iOS
File sharing
9
Facebook MessengermacOSTextYesYesYesNoOpt-inNoNoNoNoNo
10
Debian Linux
Group text
11
WindowsVoice
12
Browser extension
Group voice
13
WebsiteVideo
14
Android
Group video
15
iOS
File sharing
16
Google
Hangouts
macOSTextYesYesYesNoNoNoNoNoNoNo
17
Debian Linux
Group text
18
WindowsVoice
19
Browser extension
Group voice
20
WebsiteVideo
21
Android
Group video
22
iOS
File sharing
23
JitsimacOSTextYesNoYesIt dependsYesYesYesYesYesNo
24
Debian Linux
Group text
25
WindowsVoice
26
Browser extension
Group voice
27
WebsiteVideo
28
Android
Group video
29
iOS
File sharing
30
MumblemacOSTextNoNoYesIt dependsYesNoYesYesYesNo
31
Debian Linux
Group text
32
WindowsVoice
33
Browser extension
Group voice
34
WebsiteVideo
35
Android
Group video
36
iOS
File sharing
37
SlackmacOSTextYesYesYesNoNoNoNoNoNoNo
38
Debian Linux
Group text
39
WindowsVoice
40
Browser extension
Group voice
41
WebsiteVideo
42
Android
Group video
43
iOS
File sharing
44
SignalmacOSTextYesNoYesIt dependsYesIt dependsYesIt dependsYesYes
45
Debian Linux
Group text
46
WindowsVoice
47
Browser extension
Group voice
48
WebsiteVideo
49
Android
Group video
50
iOS
File sharing
51
WiremacOSTextYesYesYesIt dependsYesYesYesYesYesYes
52
Debian Linux
Group text
53
WindowsVoice
54
Browser extension
Group voice
55
WebsiteVideo
56
Android
Group video
57
iOS
File sharing
58
RiotmacOSTextNoNoYesIt dependsYesYesYesYesYesYes
59
Debian Linux
Group text
60
WindowsVoice
61
Browser extension
Group voice
62
WebsiteVideo
63
Android
Group video
64
iOS
File sharing
65
SemaphormacOSTextYesNoIt dependsYesYesYesYesYesNo
66
Debian Linux
Group text
67
WindowsVoice
68
Browser extension
Group voice
69
WebsiteVideo
70
Android
Group video
71
iOS
File sharing
72
SkypemacOSTextYesYesYesNoNoNoNoNoNoNo
73
Debian Linux
Group text
74
WindowsVoice
75
Browser extension
Group voice
76
WebsiteVideo
77
Android
Group video
78
iOS
File sharing
79
Skype for
Business
macOSTextIt dependsYesYesIt dependsIt dependsNoNoNoNoNo
80
Debian Linux
Group text
81
WindowsVoice
82
Browser extension
Group voice
83
WebsiteVideo
84
Android
Group video
85
iOS
File sharing
86
TrellomacOSTextYesYesYesNoNoNoNoNoNoNo
87
Debian Linux
Group text
88
WindowsVoice
89
Browser extension
Group voice
90
WebsiteVideo
91
Android
Group video
92
iOS
File sharing
93
RicochetmacOSTextNoNot ApplicableYesYesYesYesYesYesYesYes
94
Debian Linux
Group text
95
WindowsVoice
96
Browser extension
Group voice
97
WebsiteVideo
98
Android
Group video
99
iOS
File sharing
100
OnionSharemacOSTextNoNot ApplicableYesYesYesYesYesYesYesNo
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