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Threat Actors — IPs

Directory of recently active, high-risk IP addresses observed by Syndu. Each entry links to a full IP report with enriched metadata and risk scoring.
Active filter: 45.156.128. · Clear
Snapshot 2026-02-08 Results 63 Page 1 / 2

45.156.128.2

Risk 5 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
298 hits · 88 errors
First seen
2023-07-12 03:00
Last seen
2024-06-11 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.107

Risk 2 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
34 hits · 6 errors
First seen
2025-03-12 02:00
Last seen
2025-06-28 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.7

Risk 2 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
138 hits · 34 errors
First seen
2023-07-07 03:00
Last seen
2024-06-14 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.37

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
65 hits · 13 errors
First seen
2024-04-24 03:00
Last seen
2025-11-29 02:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.127

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
39 hits · 2 errors
First seen
2025-01-01 02:00
Last seen
2025-09-23 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.106

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
99 hits · 33 errors
First seen
2024-09-09 03:00
Last seen
2025-06-28 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.108

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
26 hits · 9 errors
First seen
2025-03-12 02:00
Last seen
2025-06-28 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.103

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
26 hits · 5 errors
First seen
2025-01-01 02:00
Last seen
2025-06-22 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.116

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
63 hits · 39 errors
First seen
2024-09-10 03:00
Last seen
2025-04-22 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.118

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
29 hits · 17 errors
First seen
2024-11-23 02:00
Last seen
2025-04-22 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.124

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
28 hits · 15 errors
First seen
2024-10-04 03:00
Last seen
2025-01-08 02:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.123

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
23 hits · 9 errors
First seen
2024-10-04 03:00
Last seen
2025-01-08 02:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.111

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
35 hits · 11 errors
First seen
2024-11-02 02:00
Last seen
2024-12-30 02:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.114

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
32 hits · 14 errors
First seen
2024-11-02 02:00
Last seen
2024-12-30 02:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.112

Risk 1 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
29 hits · 9 errors
First seen
2024-11-02 02:00
Last seen
2024-12-30 02:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.43

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
98 hits · 5 errors
First seen
2024-04-22 03:00
Last seen
2025-12-18 02:00
Model
v1
Freshness
Risk computed: 2026-01-28
Open report →
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45.156.128.39

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
12 hits · 0 errors
First seen
2024-06-11 03:00
Last seen
2025-11-07 02:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.96

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
1 hits · 1 errors
First seen
2025-11-05 02:00
Last seen
2025-11-06 02:00
Model
v1
Freshness
Risk computed: 2026-01-28
Open report →
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45.156.128.99

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
1 hits · 0 errors
First seen
2025-11-05 02:00
Last seen
2025-11-06 02:00
Model
v1
Freshness
Risk computed: 2026-01-28
Open report →
Explore logs →

45.156.128.45

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
108 hits · 18 errors
First seen
2024-04-25 03:00
Last seen
2025-10-09 03:00
Model
v1
Freshness
Risk computed: 2026-01-28
Open report →
Explore logs →

45.156.128.41

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
53 hits · 5 errors
First seen
2024-09-13 03:00
Last seen
2025-10-05 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.129

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
38 hits · 3 errors
First seen
2025-01-16 02:00
Last seen
2025-10-03 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.47

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
68 hits · 10 errors
First seen
2024-06-12 03:00
Last seen
2025-10-01 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
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45.156.128.126

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
28 hits · 6 errors
First seen
2025-01-10 02:00
Last seen
2025-09-29 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.64

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
5 hits · 1 errors
First seen
2025-04-05 03:00
Last seen
2025-09-11 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.86

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
1 hits · 0 errors
First seen
2025-08-22 03:00
Last seen
2025-08-23 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.128

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
13 hits · 0 errors
First seen
2025-03-11 02:00
Last seen
2025-08-22 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.49

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
43 hits · 1 errors
First seen
2024-09-05 03:00
Last seen
2025-08-17 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.59

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
5 hits · 0 errors
First seen
2025-02-14 02:00
Last seen
2025-08-17 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.101

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
34 hits · 9 errors
First seen
2025-01-01 02:00
Last seen
2025-08-02 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.104

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
25 hits · 11 errors
First seen
2025-01-01 02:00
Last seen
2025-08-02 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.131

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
34 hits · 4 errors
First seen
2024-12-23 02:00
Last seen
2025-07-30 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.93

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
1 hits · 1 errors
First seen
2025-07-26 03:00
Last seen
2025-07-27 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.130

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
28 hits · 1 errors
First seen
2024-12-19 02:00
Last seen
2025-07-23 03:00
Model
v1
Freshness
Risk computed: 2026-01-28
Open report →
Explore logs →

45.156.128.109

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
20 hits · 7 errors
First seen
2024-09-19 03:00
Last seen
2025-06-28 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.102

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
27 hits · 12 errors
First seen
2025-01-01 02:00
Last seen
2025-06-22 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.77

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
2 hits · 0 errors
First seen
2025-02-05 02:00
Last seen
2025-05-24 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.98

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
1 hits · 0 errors
First seen
2025-05-23 03:00
Last seen
2025-05-24 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.89

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
1 hits · 1 errors
First seen
2025-05-11 03:00
Last seen
2025-05-12 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →

45.156.128.119

Risk 0 LOW
ASN
AS211680
Organization
NSEC - Sistemas Informaticos, S.A.
ISP
NSEC - Sistemas Informaticos, S.A.
Location
The Netherlands · North Holland · Amsterdam · 1012
Hits / Errors
34 hits · 16 errors
First seen
2024-11-23 02:00
Last seen
2025-04-22 03:00
Model
v1
Freshness
Risk computed: 2026-01-14
Open report →
Explore logs →
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