Overwatch suffered from a DDoS attack in June 2016 after that they put their servers down for possible Lizard Squad.
Blizzard was facing difficulties with logging in, Overwatch players were being disconnected from matches, leading to a general concern on Twitter that they'll be penalised in line with Blizzard's crackdown on rage quitters.
Source: https://www.vg247.com/overwatch-servers-down-in-possible-lizard-squad-ddos-attack
TPRM report: https://scoringcyber.rankiteo.com/company/overwatch
"id": "ove102128522",
"linkid": "overwatch",
"type": "Cyber Attack",
"date": "06/2016",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization's existence"
{'affected_entities': [{'customers_affected': 'Overwatch Players',
'industry': 'Gaming',
'name': 'Blizzard',
'type': 'Company'}],
'attack_vector': 'DDoS',
'date_detected': 'June 2016',
'description': 'Overwatch suffered from a DDoS attack in June 2016, which led '
'to server downtime and logging issues. Players were being '
'disconnected from matches, raising concerns about penalties '
'for disconnections.',
'impact': {'customer_complaints': 'General concern on Twitter',
'downtime': 'Servers were down',
'operational_impact': ['Logging issues',
'Disconnections from matches'],
'systems_affected': ['Overwatch Servers']},
'threat_actor': ['Lizard Squad'],
'title': 'Overwatch DDoS Attack',
'type': 'DDoS Attack'}