Apache Solr with Java – Building High-Performance Search Solutions

Reimplementing a Trie Reminded Me How Autocomplete Actually Works

I spent an embarrassing amount of time last week reimplementing something I'd "known" since a data structures class a decade ago: the trie.

• Trie stores strings by character along shared paths from root
• Autocomplete features utilize trie's prefix lookup mechanism
• Trade-off of naive trie implementation is significant memory waste

1h ago ·dev.to

Mississippi mayor says ransomware incident led city to shut down systems

Government services were temporarily disrupted by ransomware in Vicksburg, Mississippi. Mayor Willis Thompson said the FBI and other authorities are investigating.

1h ago ·therecord.media

'Warlock' ransomware used in attacks on critical infrastructure in Portuguese, Spanish-speaking countries

The group is exploiting a variety of vulnerabilities impacting Microsoft SharePoint, according to a new report from Symantec Threat Hunter Team.

1h ago ·therecord.media

Break It, Then Ask Why: Exposing a Hidden Internal Dev Console With One Flipped Flag

Honestly, this one was kind of an accident. I'd been on this travel site for a couple of hours (the big booking one) and had basically nothing to show for it.

• Hidden internal developer console exposed on travel booking website
• Boolean flags set to true revealed console due to validation flags set to false
• Console contained internal service names, ports, and override options

1h ago ·dev.to

I Said Isolation Was Structural. Then Tenancy Shipped and Proved Me Right the Hard Way

In the last piece of my v0.1.0 series I wrote a sentence I was proud of and not yet entitled to: "isolation is structural or it's imaginary." I deferred it.

• Isolation is structural, proven by tenancy testing
• v0.2.0 multi-tenancy release shipped with vulnerabilities
• Composite primary keys and rigorous testing key to true tenancy

1h ago ·dev.to