today i report the psirt work to my new leader.
i defines that the psirt work contains five part.
first, detect the incident and vunl
second, bridge connecting inside and outside
third, response to security incident
forth, regulation to form the behave
fifth, dashboard to evalue the whole process
这段英文中存在一些语法和拼写错误，下面我会逐一指出并给出修改建议：
“today i report the psirt work to my new leader.”
这句话是正确的，表达了你今天向新领导报告了PSIRT工作的内容。
“i defines that the psirt work contains five part.”
应改为“I define that the PSIRT work contains five parts.”
解释：主语“I”是单数，所以动词应该用“define”而不是“defines”。另外，“part”是可数名词，所以应该用复数形式“parts”。
“first, detect the incident and vunl”
应改为“first, detect the incident and vulnerability”
解释：看起来这里是想表达“detect the incident and vulnerability”（检测和发现事件及漏洞），但是“vunl”是拼写错误，正确的单词是“vulnerability”。
“second, bridge connecting inside and outside”
这句话的意思基本清楚，但是可以更具体一些。例如：“second, bridging the connection between inside and outside.”
解释：加上“the”使句子更流畅，同时“bridging”作为现在分词作为句子的主要成分更合适。
“third, response to security incident”
这句话是正确的，表达了对安全事件的响应是PSIRT工作的第三部分。
“forth, regulation to form the behave”
应改为“fourth, regulation to govern behavior”
解释：“forth”是拼写错误，正确的是“fourth”。同时，“form the behave”表达不准确，应该是“govern behavior”（规范行为）。
“fifth, dashboard to evalue the whole process”
应改为“fifth, dashboard to evaluate the whole process”
解释：“evalue”是拼写错误，正确的单词是“evaluate”。
修改后的段落如下：
Today I reported the PSIRT work to my new leader.
I define that the PSIRT work contains five parts.
First, detecting the incident and vulnerability.
Second, bridging the connection between inside and outside.
Third, responding to security incidents.
Fourth, regulating to govern behavior.
Fifth, dashboard to evaluate the whole process.
今天我给新领导汇报了psirt工作
我把PSIRT工作分为5部分
第一部分 感知漏洞
第二部分 内外部桥梁
第三部分 事件响应
第四部分 规范
第五部分 度量
制作看板对整个研发过程进行度量
Today, I reported the PSIRT work to the new leader
I divided PSIRT work into 5 parts
Part 1: Perceived Vulnerability
Part 2 Internal and External Bridges
Part 3 Event Response
Part 4 Specifications
Part 5 Measurement
Create a Kanban to measure the entire R&D process