Secure Messenger Scorecard development via yawnbox.com
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ToolsPlatformsUse 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 calls
macOSTextYesNoWeakNoNoNoNoNoNoNo
3
Debian LinuxGroup text
4
WindowsVoice
5
Browser extension
Group voice
6
WebsiteVideo
7
AndroidGroup video
8
iOSFile sharing
9
Facebook
Messenger
macOSTextYesYesYesNoOpt-inNoNoNoNoNo
10
Debian LinuxGroup text
11
WindowsVoice
12
Browser extension
Group voice
13
WebsiteVideo
14
AndroidGroup video
15
iOSFile sharing
16
Google
Hangouts
macOSTextYesYesYesNoNoNoNoNoNoNo
17
Debian LinuxGroup text
18
WindowsVoice
19
Browser extension
Group voice
20
WebsiteVideo
21
AndroidGroup video
22
iOSFile sharing
23
JitsimacOSTextYesNoYesIt dependsYesYesYesYesYesNo
24
Debian LinuxGroup text
25
WindowsVoice
26
Browser extension
Group voice
27
WebsiteVideo
28
AndroidGroup video
29
iOSFile sharing
30
MumblemacOSTextNoNoYesIt dependsYesNoYesYesYesNo
31
Debian LinuxGroup text
32
WindowsVoice
33
Browser extension
Group voice
34
WebsiteVideo
35
AndroidGroup video
36
iOSFile sharing
37
SlackmacOSTextYesYesYesNoNoNoNoNoNoNo
38
Debian LinuxGroup text
39
WindowsVoice
40
Browser extension
Group voice
41
WebsiteVideo
42
AndroidGroup video
43
iOSFile sharing
44
SignalmacOSTextYesNoYesIt dependsYesIt dependsYesIt dependsYesYes
45
Debian LinuxGroup text
46
WindowsVoice
47
Browser extension
Group voice
48
WebsiteVideo
49
AndroidGroup video
50
iOSFile sharing
51
WiremacOSTextYesYesYesIt dependsYesYesYesYesYesYes
52
Debian LinuxGroup text
53
WindowsVoice
54
Browser extension
Group voice
55
WebsiteVideo
56
AndroidGroup video
57
iOSFile sharing
58
RiotmacOSTextNoNoYesIt dependsYesYesYesYesYesYes
59
Debian LinuxGroup text
60
WindowsVoice
61
Browser extension
Group voice
62
WebsiteVideo
63
AndroidGroup video
64
iOSFile sharing
65
SemaphormacOSTextYesNoYesIt dependsYesYesYesYesYesNo
66
Debian LinuxGroup text
67
WindowsVoice
68
Browser extension
Group voice
69
WebsiteVideo
70
AndroidGroup video
71
iOSFile sharing
72
SkypemacOSTextYesYesYesNoNoNoNoNoNoNo
73
Debian LinuxGroup text
74
WindowsVoice
75
Browser extension
Group voice
76
WebsiteVideo
77
AndroidGroup video
78
iOSFile sharing
79
Skype for
Business
macOSTextIt dependsYesYesIt dependsIt dependsNoNoNoNoNo
80
Debian LinuxGroup text
81
WindowsVoice
82
Browser extension
Group voice
83
WebsiteVideo
84
AndroidGroup video
85
iOSFile sharing
86
TrellomacOSTextYesYesYesNoNoNoNoNoNoNo
87
Debian LinuxGroup text
88
WindowsVoice
89
Browser extension
Group voice
90
WebsiteVideo
91
AndroidGroup video
92
iOSFile sharing
93
RicochetmacOSTextNoNot ApplicableYesYesYesYesYesYesYesYes
94
Debian LinuxGroup text
95
WindowsVoice
96
Browser extension
Group voice
97
WebsiteVideo
98
AndroidGroup video
99
iOSFile sharing
100
OnionSharemacOSTextNoNot ApplicableYesYesYesYesYesYesYesNo
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